Completing the Square - GCSE Higher Maths

A video explaining how to express a quadratic expression in the completed square form.
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0:00 What is completing the square?
0:31 How does it work?
3:29 A first example of completing the square
5:18 A second example of completing the square with steps
6:40 A third example of completing the square
7:57 A more difficult example
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[@Laxmi_patwa]

Where were u all my life.... Bro u explain better than my teachersssss

[@hopetig1354]

mate you are actually saving my exams.

[@hibawasim6845]

You are absolutely amazing and you saved my GCSEs. Thank you, from the bottom of my heart for every video you posted and for all the questions you've solved. I don't know what I'd do without you. I'm grateful for you, you're amazing and please keep going!!

[@1stClassMaths]

Thank you for these very kind words! I will keep going don’t worry - plenty more videos on the way!

[@hibawasim6845]

@@1stClassMaths Thanks so so much! Means alot to me! You've helped alot in my exams I hope you succeed in whatever you do. Could you post a video on every topic in higher tier maths GCSE just like you posted for foundation? Please it would help a ton! I have GCSEs in a month and could really use it before the exam please💗💗

[@1stClassMaths]

Hi! I am actually working on this now. I have 20 more questions to record so I expect it will be ready around this weekend.

[@hibawasim6845]

@@1stClassMaths no way! you have absolutely no idea how much i appreciate you, i wish i could repay you. I will do anything to make your channel grow. Thanks once again for all the work that you do. You deserve alot. It is seriously because of you that I'm getting good marks in maths mock, i was writing my math mock the other day and so many questions came up from your predicted papers and other papers that you've tried, and I've remembered you while I was writing my exam. Thanks so so much. May you have a successful future ahead.

[@theblueraven764]

My teacher: Spends 4 hours+ trying to teach me this and I still end up clueless This legend: gives me a 10 minute video on it and I understand completely Honestly you're amazing, I think you may even put me up two grades from a grade 4 to a 6, mabye even more, so helpful :)

[@1stClassMaths]

Thank you so much!

[@richardlau395]

Thank you- now I understand the reason for subtracting the squared number outside the brackets. It is simply to 'neutralise' the effect of expanding (x + a)^2. It's only taken me 50 years to discover the reason! I'm now 65...and still learning.

[@idontknow1630]

always found it hard explaining this to others. A really clear video. Keep up the work!

[@1stClassMaths]

Much appreciated!

[@GCSEALevelMaths]

Excellent start to the channel!!

[@wiki5035]

u saved my gcse life thank u so much

[@Eduardo-tq5sk]

When it comes to art ,its different when explained by each individual,so I never seem this detais ,so .. w/ your detail that havwnt had explained on books ,I can even help who doesnt know ,I thank you for this! No fingerprint is the same within all peoplw ,art is diverse!

[@KayOne._]

Appreciate You

[@penguin-ivy]

Very well explained, thank you

[@1stClassMaths]

You are welcome!

[@user-vq3yb8ic4q]

i think there might be something wrong with question 6 on edexcel sytle because it says ‘in the form (x-a)2 + b but the answer is (x-6)2 *-* 52

[@1stClassMaths]

Hi it is ok to be positive, it just means your answer is negative. So b = -52

[@AhmedtheCyberWarrior]

Can u post a video about sin cos tan graphs would highly appreciate it

[@1stClassMaths]

I am working through all topics so will eventually. There is one on solving trig equations on my further maths playlist you may find useful.