GCSE Maths - What on Earth are Surds??? And How do You Simplify Them? (Part 1/3) #40

This video looks at what surds are and how you can simplify them.
This is the first of our 3 part series on surds.
This video is suitable for maths courses around the world.
KS3 - Not on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course
Maths Playlist:
• GCSE Maths (9-1)
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video

[@Cognitoedu]

If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

[@royalobasi1938]

thank you

[@A1z4h]

this is so helpful I js subscribed and made an account thanks so much!

[@A1z4h]

I’m in year 8 but goes to private school school so we learn 2 years above but I signed myself up to year 9

[@floriesmith2678]

My teacher sucks and I don't understand anything even though I try my best to pay attention. This helps me so much, thank you!

[@red3361]

same here

[@PeterTessyman]

Same here. I've read and reread the textbook a dozen times and this video explained it in 5 minutes.

[@aarav1105]

same she dosnt even give us notes

[@indradhojtulachan2197]

Same t

[@katdoestuffYT]

Fr she just be skipping the entire process and suddenly getting an answer when she could’ve just explained it like this is 2 minutes 💀

[@floflo9562]

Saw the title "what on earth are surds?!" and I knew this video was the one

[@Cola_Rxbz]

lool 😂

[@purgeziadk1009]

Real

[@Food_enthusiasts_749]

Fr

[@harryford8340]

Except there were no surds questions on my mock today

[@hhanaaaaaah]

i studied this like 2 years ago... having my exam in 2 days and this really helped remember.. please keep posting,...THANK YOU!

[@aymenawais8605]

How did ur exams go?

[@106O7]

about 2 hours before exam 😬

[@A-blox-fruits-maine]

Literally mines at 9

[@ednakanawila5527]

Legend 😂

[@bricksb]

How did u do?

[@106O7]

@@bricksb terrible but thats okay

[@EugeneDingleBerryFan]

Lol im watching this the night before the exam

[@oTbear_]

Our teacher didn't even cover this topic and it's on the test notification. This video helped thanks.

[@just_a_person_15]

why do maths teachers over complicate everything. this helped me so much, thankyou cognito!!

[@yongtangzhang7790]

innit

[@spookydimmc377]

This is one of THE BEST Maths Channels on youtube

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If cognito goes incognito then i will be done for real😫

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He did lol

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Nah bro if he goes incognito where all cooked

[@mollymilburn]

thank you for this video! I've been doing some last minute revision for my gcse mocks and this really helped :)

[@Cognitoedu]

You’re welcome - good luck!

[@enaya921]

my mock is tmrw lmao

[@brookeChelsea-cv9gr]

@@enaya921same

[@almondmemes5945]

​@@enaya921my MOCs are on the 6th December

[@dankforehead]

@@enaya921how did it go???

[@florriegee6381]

Your videos are so helpful. I am so glad I found you channel. Thank you!

[@johaanjobish3273]

no problem!

[@yourmumwatcheseastenders7718]

not me watching this 12 minutes before the exam

[@R4ptorrrr]

How did you do

[@josequadros2376]

I learn more when I watch it on KZbin but when my teachers says it it’s blured

[@mirzy8490]

what does that mean?

[@samihahassan532]

@@mirzy8490 he/she means they explain unclearly

[@mirzy8490]

@@samihahassan532 aight thank you

[@userK77920]

Ikr

[@x4bad2]

FR

[@nuggetman09]

my literal reaction to learning about surds was 'what the heck are surds' thank you so much

[@hshshshshshsjsjsjsn2453]

Before the exam😄🙋‍♀️🙋‍♂️

[@ftldesignbureau7891]

same

[@i_love_BTS_ot7]

Same

[@Shadowcrusader8]

Shout out to late studies

[@michaelclark1303]

Thank you this is really helpful I’m also watching your biology stuff. This video really simplified surds. Keep up the good work!!!!!

[@o5999]

thank you so much ive been out of school for years cause of anxiety and im hopefully going back soon and i didnt want to be behind and for once i got it straight away

[@mathsmagician6949]

I am a starting out maths channel and I just wanted to know what application do u use to make your videos because it looks really nice and flows well. Amazing video by the way!

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@@sherongengan757 didn’t ask don’t care

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[@loganpritchard6538]

How have you taught this better than my teacher could in like 2 weeks

[@Ala-sc3fx]

YOU ARE A SAVIOUR, ACTUALLY, THANK YOU IF ONLY I WATCHED THIS EARLIER, MAYBE ID DO BETTER ON MY TEST

[@Cognitoedu]

🙌 🙌

[@tejanot8097]

Thanks man..helped a lot

[@YahyaKhan-uv6ct]

Great video, really helped me grasp the concept of Surds, terrific effort guys and thanks so much

[@akosuakyekyere1481]

Im doing my Midterm exams and this is on it. Never really went into my head before but now i get it. Thanks a lot 😁

[@lucyclark.]

Thanks for the video. I really struggled with this topic and now find it much easier

[@sourrice1741]

Can I just ask : For all your hard work uploading these video (which are fantastic btw), do you earn anything - are these videos monetised. Just interested to see if you are being rewarded for your hard work!

[@Nhsarangaeoppa]

U explained it in 5 mins our teacher expanded in a longgggg way and it took 40 mins and I still didn’t knew lol

[@naimah3198]

Know*

[@jackzammit5792]

i think you need an english teacher over maths.

[@Rubinkys]

@@jackzammit5792 Plenty of people type horrendously when texting, not like a YT comment section is formal or anything. Also, you forgot to capitalize your "I". If you want to judge someone at least do it correctly.

[@joshmedia7198]

Thanks soh much I needed to remember this cuz I have WAEC coming up this really help pls continue posting ❤

[@INFINIT3Rxpct]

Thanks a lot! I've been using your website for a year now and it is by far the best.

[@Cognitoedu]

Great to hear you're finding the website helpful 😊

[@INFINIT3Rxpct]

@@Cognitoedu Can you please make the practice questions and past papers on your website a lot harder, or provide harder alternatives because I find your videos packed with dense information that I find really helpful in difficult exams but the practice questions and past papers are relatively easy and I don't find them challenging. Thanks!

[@Robin-zn4ho]

You are my saviour, you are so easy to understand! I learn more in 5 minutes than I do in an hour-long school lesson!

[@artoh7317]

Jesus is our savior

[@2swchannel412]

🙏🏼 my teacher is so bad and impossible to understand but I understood this easily so thanks so much

[@farifarii]

hii! this helped me so much, however, there was a question that came up and root 19 somehow was simplified to 4.5? using surds? I’m very confused

[@ronaldoggha1801]

Thanks, i just forgot how to simplify surds. And your video helped me

[@ryze5436]

Nice video Bet this helps a lot of people with their school work

[@aelamrani7525]

your channel is so amazing and underrated i use it all the time for maths and science its such a lifesaver thank u

[@Cognitoedu]

Thanks Aya glad you enjoy it!

[@emmajohnson742]

Made much more sense than anything else I read, thanks 👍

[@baljeetlol7944]

Thanks! You really helped me for my year 7 maths test

[@idekkkkkk5647]

YEAR 7!!!!

[@BenDover-pk3wy]

@@idekkkkkk5647 makes sense since he is an Indian lol

[@udontke]

Thank you for making this video! It was so helpful and i have a test tomorrow. Guess i know everything now!

[@jakub_noj]

Thank god I found this today I have a test on this tommorow

[@ryanmittal0001]

GG dude ur teaching way was great so i m ur new subscriber congrats awesome teaching dude!! actually ur channel is underrated good luck buddy

[@Cognitoedu]

Ah thank you so much Ryna, glad you're enjoying the channel 👍

[@jeetjagsanta4356]

Hi have you got video for negative and positive numbers

[@SILX]

what if i use smaller factor for a surd? my answer is different

[@harrinivijay1862]

holy hell thank you so much for this video i have a test in like an hour and i never understood this topic so this makes it so much easier

[@Cognitoedu]

That's great Harrini, hope your test went well!

[@harrinivijay1862]

It did yes! im getting my results next week ill reply to this then

[@thethreeadorablebears7165]

@@harrinivijay1862 how did u go???

[@harrinivijay1862]

@@thethreeadorablebears7165 ajdfuhv its literally been 3 weeks my teacher still hasnt marked it oof but last time i asked her she said she'd have it back to me by saturday and bruh that was yesterday but hopefully ill get my results by wednesday at least and then ill tell u

[@harrinivijay1862]

wait actually im wrong she said she did mark it but not the entire classes and she doesnt want to return ppls work without returning it all or sumthing

[@smoker6683]

I get the process, but in what way is it simplified?

[@yousefnaseer5759]

this really helped me alot thanks pal

[@KBMFilms2020]

really needed this, I understood this with such ease thank you so much!!!

[@mishaeimaan3911]

Thank you so much for this!! I have a test soon and this really helped me understand how to do surds!

[@Cognitoedu]

Great to hear it helped you! Good luck with your test :)

[@ravibhushan1090]

Effective presentation. Thanks.

[@Mits_istired]

As an IGCSE student this really helped thanks ♥️

[@yasmindevries2593]

no one even taught me this and its gonna appear in my gcses istg these teachers

[@fee7uyy]

BRO BE A TEACHER IRL BRO BEST TEACH EVER

[@Doznuts]

Wow 👏 very nice.

[@luigiwallis1548]

Thank you so much. I now understand surds after 2 years of higher maths

[@arunakumarikindinti1932]

I understand a lot and helped my test in online classes

[@Cognitoedu]

Ah that's great to hear Arunakumari!

[@viclay2560]

Thank you! You won't know how tremendously your videos contribute to our GCSE studies! We really appreciate your help!

[@Cognitoedu]

Ah thank you Viclay, glad you're finding them useful 😊

[@saharaftab6329]

I was just finding the how to simplify surds and I found this video🥰. Thanks for teaching me math in this pandemic.

[@nayeonsbunny7200]

Thanks for this, I have a maths test in a few days, I’ve learnt this but I needed a recap and this is genuinely so helpful

[@Cognitoedu]

Glad you think so! All the best with the test 🤞

[@nayeonsbunny7200]

@@Cognitoedu I actually did quite well! For me anyways, I got 33/46 and this actually stuck in my head, usually everything falls out but this worked lol

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[@user-bm5et8ps7r]

Well explained sir thank you

[@user-lq8tt3nc4q]

Thank you soo much your explained it and made it easier for me

[@segmclarenpeek8935]

Aye g, you better than banwa g

[@LotusLearningBenowa]

i swear they never taught this in class but this vid was linked on the math onenote. I have exam tmrw and thank god i watched this vid.🙏🙏🙏😭😭😭

[@joshdavies6440]

How do I do surds when the question is for example Square root of 48 In the form K square foot of 3 Where K is an integer

[@joshdavies6440]

Wavey.jd15 if you know add my insta and tell me😭

[@robustsshadow]

Square root of 48 can be simplified to square root 16 Times Square root 3 square root 16 can simplify to 4 leaving 4 square root 3

[@isabelbarron2891]

he did 48 in the vid

[@cheatertornadoz]

@@robustsshadow why can’t it be 12 and 4 tho?

[@cheatertornadoz]

Oh wait 12 isn’t a prime number

[@cynthiakumassah1462]

This is the most helpful video yet

[@sup3r621]

Thank you so much, I'm up at 1 revising for my maths test tomorrow and now I can finally go to bed.♥♥♥

[@leswest9287]

An incredibly clear explanation so easy for students to understand. Well done.

[@BANDSCLIPPEDIT]

no way ur better than my maths teacher

[@ShantalNYAKWERA]

for the square root of 200, I used 25 and 8, and it gave me 5 root 8, am I right, cuz none of them is a square number for more steps?

[@miss_skeletonn]

how is it possible to explain something so hard so well, thank you!

[@tusharkashyapgaming7109]

It is a very useful video, Thanks for video

[@evelynkmuyemba]

Thank you 😊

[@subataafzaal1853]

Thanks very well explained.👌👍

[@x.pv2452]

Waw mate this video is well explained and I am so terrible in maths do you have a video about quadratic expressions?

[@moon_child21]

Thanks for helping for my test tmrw

[@gerarddonovan4145]

√2 + √7 =? We cant really simplify it or can we? Can the √ of prime numbers be simplified?

[@Nnamani994]

Ok, how do I find out the biggest square numbers close to the number of the rational number I want ti simplify?

[@jyotipanda9766]

Thank you!

[@someoneplays5513]

Bruhh you made it very easyy and understandable! Thankss

[@comicreader9423]

I'm here about a year before my exam.... I don't know why I'm panicking a little bit. Why am I panicking? It's literally the middle of summer 😭

[@numpty1237]

best revision videos out of all maths vids out there. thanks :))

[@axelbonal8760]

I hope this will help me in my math test because surds will be the mane subject

[@PreciousMmeleri]

Thank you so very much 😊the video was indeed useful

[@tlougames]

thank you so much!! Have another maths test on this and this was really helpful

[@simrandhillon3791]

Thank you so so much❤❤❤

[@amaan8303]

Do these rulws work for cube surds

[@francesca-pj2ft]

THANKYOU!

[@ananyasingh168]

Isn't this was the easiest way to learn multiplication and division of surds?

[@janicelee9489]

Why can't i write 48 as 4x12 so it would be 2squared 12

[@dat_gurl_]

Thank so so much this made my learning way much easier

[@PrairieWalker]

So helpful

[@FaizalSameen]

Best explanation ❤ thank you

[@chatterbot___]

Im about to go into my year 10 maths exam, wish me luck :D ive been using your videos a lot for revision, its been really helpful

[@Cognitoedu]

Thanks froggy, hope it all goes well 🤞

[@oc1anking956]

This is un yr 10 rlly u thought it was yr7 im doing thus in yr 6 Note: Im asian so what do u sxpect!

[@chatterbot___]

@@oc1anking956 nah it was in year 7 but I just never paid attention 😭😭😭

[@therealjoelinton3746]

before maths paper 2 gsce thanks and hope everyone else doing it does well

[@artoh7317]

Thanks

[@aliazmat4568]

Thank you so much it really helped me

[@AbdulArnoldKomeh-yh8ii]

Thank you so much it is really helpful

[@ayeshasiddiqui9552]

Please do a video on trigonometry

[@e11en.74]

I’ve got a test on Friday and know nothing :| no joke. I love you for this video

[@Cognitoedu]

Good luck

[@e11en.74]

@@Cognitoedu thank youuu. I’ll need it lol

[@marcusmjn6793]

@@e11en.74 how did it go

[@e11en.74]

@@marcusmjn6793 it went well it wasn’t my best score considering this and a couple other things were the only revision I did. I can’t remember what I got but it was other 50% 😁😁😁

[@danzel9871]

These videos are really helpful, but I was wondering if you could make a video involving set notation

[@user-lg6bd5rj1j]

thank u it was very helpful

[@isabelbarron2891]

THANKS SO MUCH! your channel has helped me massively! appreciate it!

[@Cognitoedu]

Aw thanks Isabel, glad we could help!! 😊

[@موسى_7]

3:20 So we don't write 2 times root 2 times root 5