Factorising : Quadratic (trinomial) Expressions : ExamSolutions

How to factorise quadratic expressions tutorial.
KZbin CHANNEL at / examsolutions
EXAMSOLUTIONS WEBSITE at www.examsoluti... where you will have access to all playlists covering pure maths, statistics and mechanics.
/ examsolutions.net
NEW INSTAGRAM: / examsolutionsguy
TWITTER: / examsolutions
PREDICTIVE GRADES PLATFORM
LEARN MORE AT: info.examsolut...
☑️ Accurate grade predictions
☑️ Personalised resources and tuition
☑️ Guaranteed results or get your money back
SIGN UP FOR A 7-DAY FREE TRIAL, THEN 20% OFF.
share-eu1.hsfo...
ONLINE COURSES AT:
www.itutor.exa...
THE BEST THANK YOU: www.examsoluti...

[@banwarilalyadav4921]

exam solution you are god of us and make my study easy

[@mominhaider3492]

who else have a maths test tomorrow?

[@kamranabbas3468]

how bout o level board

[@alvisecastellini9943]

no

[@georgeruellan8593]

Me!

[@abidinggreek8304]

Momin Haider exam

[@RJassassin28]

OMFG You are the only person who explains this well :)

[@jessienorman4127]

Thank you so much my teacher set us an entire chapter of questions and your video really helped me to understand what to do!!! You have earned my subscription!!! Keep doing what you're doing!!!!

[@ExamSolutions_Maths]

Will do so long as people keep watching them.

[@Jackdaman008]

Last minute revision. Never been taught a good way of factorizing until now so hopefully it'll save me some time in the exam while using this method, Thanks alot!

[@ксениязелинская-й2ы]

thank you very much! I couldn't understand this way of solving from school. Now I'm studing at universty. I've got an exam on monday. I'm sure your clean explanation will hepl me to understand more complicated topics connected with this one.

[@ExamSolutions_Maths]

+ксения зелинская Good luckfor Monday.

[@hamadbinmohammed2636]

you are the best teacher eevvveerrr !!! i understood everything and i got 97 in my math exam and its all because of you thank you !!

[@muhammeddemir9694]

This was the best video. Explains it really well I fully understand this topic now.

[@ethanodis6440]

Thanks very much, your videos are great for helping me fall asleep

[@lolandlold]

Thanks! You explain everything so much easier!

[@ExamSolutions_Maths]

@fegeleiin Because you cannot get two rational values to add to 1 and multiply to give 2.

[@mateozeppelin]

wow mind blown. thankyou

[@ExamSolutions_Maths]

Excellent. Well done.

[@kashsamp7901]

This video is very, very helpful it could be the difference between an A*/A I subscribed, thank you. Appreciated.

[@sharonperera4737]

THANKS I UNDERSTAND!

[@Darkarai28]

i like the way u say okay

[@deadlyrage2744]

Easy to understand and very helpful! Thanks a lot! :)

[@Mabiteb]

thank you so much for your videos. You've helped me so much!!!

[@ExamSolutions_Maths]

That's okay. Good to have your support.

[@kian2135]

great video to use while studying Thank You!

[@vasilistsakouleris]

thx so much man! I'm now ahead of class!!!

[@ExamSolutions_Maths]

+Vasilis Tsakouleris Well done. I hope you can try and keep it that way.

[@vasilistsakouleris]

+ExamSolutions i am mate and ill have to watch more of those tutorials :)

[@rizmar.1199]

Very helpful and well explained thank you!!

[@siljanjohnuupanddowngroups1102]

That was. An excellent video that helped me a lot thank you

[@pebbles1k1]

my god thank you so much dis really help me i dont kno how else to tank u ^__^

[@rishabhk8215]

Great video! Thanks a lot and keep up the good work.

[@malekawwad1259]

thanks got my exam in less than a week and that really helped me

[@ExamSolutions_Maths]

Good luck.

[@berkallday]

thanks i really appreciate your videos mate, I'm from Australia and I'm assuming your from England but i think i speak on behalf of the us Australian students but there is a subject called 'Math Methods' not sure if you heard of it or not. But its a fairly hard subject and was wondering if you could do some videos on that.

[@ExamSolutions_Maths]

I have looked up the Math Methods specification for Australia and I felt that the majority of stuff is on my site albeit under different sections. What was it in particular that you feel that I haven't got?

[@ExamSolutions_Maths]

Cool

[@ExamSolutions_Maths]

I hope you do. Good luck for Monday

[@ExamSolutions_Maths]

It should be 8 x -15 = -120 not 120 and then 10 x -12 = -120 and 10 -12 = -2. No problem!

[@phoolmoteejayram6264]

very helpful thank you sir

[@ExamSolutions_Maths]

You are welcome

[@tahbisa7420]

Thank you, this video was really helpful

[@ExamSolutions_Maths]

+Tahbitha Deng You're welcome

[@mozelchowdhurry8451]

Hi sir, very good video but i just have question: for the first question can your answer be (2x+10)(x+3) which would give you x= -5 and x= -3.

[@HassanAli-id2op]

great job keep on going!

[@BeautifulRose16]

For the 2nd example, you used 6 and 1 ... but couldn't you also have used 3 and -2? They add up to make 5, and multiply together to give -6

[@ThatsMattTV]

You said that if you switch the x's it wont make any difference to final answer, but on Q: 2x^2-7x+6 the answer is different (2x-4)(x-1.5)? (I see that if you actually work out x it is the same, but still confused me for a while).

[@mateozeppelin]

Theres a major problem with this method.. EG. 8x^2 - 2x - 15 As you can see, 8 x 15 = 120 ... But there are NO numbers that add to make -2... PLEASE EXPLAIN THIS!!!

[@ExamSolutions_Maths]

okay

[@ExamSolutions_Maths]

No I said -4 added to -3 gives -7 which is correct -4+-3=-4-3=-7

[@kallumgreen6683]

helped heaps. thanks! :D

[@ExamSolutions_Maths]

Well done

[@kallumgreen6683]

ExamSolutions my exams tomorrow but i understand it now :D

[@ExamSolutions_Maths]

Kallum Green Good luck

[@DoctorHadez]

thank you so much :)

[@ExamSolutions_Maths]

@MilitaryMan006 not really

[@mateozeppelin]

but i thought you have to find two numbers that MULTIPLY to make -120 and also ADD to make -2?? are u saying they can SUBTRACT to make -2??

[@berkallday]

for the first question, could you do -15+2, as this =13?

[@ExamSolutions_Maths]

No, as -15 + 2 =-13 not 13

[@hugopapiernik2134]

What if the number before x squared is a negative?

[@ruthannestephanie8741]

10:54 - 10:55 you say - 4 -+ (- 3) = - 7 but doesnt two negatives make a positive?

[@ExamSolutions_Maths]

@Godisgoodamen1 Cool

[@mohamedbashir5812]

thanks bro

[@ExamSolutions_Maths]

@prence1725 I wish.

[@OppenedDark]

how would you do this (2x+1)(3x+1)=6x²-5x+1 how would you do this ??

[@kamranabbas3468]

WTF

[@ExamSolutions_Maths]

Yes but 10 + -12 = -2

[@ExamSolutions_Maths]

You meant, I used 6 and -1. If I used your values 3 and -2 they do not add to make 5. They add to make 1. That is why they do not work.

[@rv9097]

so confusing!

[@alvisecastellini9943]

you dumb

[@awais_k101]

What grade is this gcse?

[@sabaali9796]

Grade A work this is

[@awais_k101]

+Stella Maroon ok thnx

[@ExamSolutions_Maths]

You can always make a donation

[@kamranabbas3468]

no

[@ExamSolutions_Maths]

@Menacin Thank you - I wish you had a million pounds!

[@jjperry5048]

+Momin Haider Me XD

[@nancyibbitson3010]

Thanks but don't encourage people to write 1x they'd lose a mark

[@ExamSolutions_Maths]

Hi, thanks for your comment. I cannot see why they would lose 1 mark at this stage for putting a 1 though. This was done on purpose to highlight the fact that 1 would then be a common factor as I have taught so many students over the years that have failed to see the next stage when a 1 is not placed in the intermediate stage. I understand what you are saying if the final answer to some expression was 5+x and not to leave it as 5 + 1x.

[@yongshiangtham346]

2(pi)(R^2)-2(pi)(r^2)+2(pi)(R)(h)+2(pi)(r)(h) =? how to do this?