Edexcel Core Maths C4 January 2011 Q5(b) : ExamSolutions

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Despite a hatred of your voice, thank you for these tutorials; they've helped me so much.

AndThePincers
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Thanks, did this paper today, lucky you did the tutorial yesterday. I might consider donating what little money I have to you.

Deathhead
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I think your voice is decent tbh, not to mention the intonation and speech tempo that always stays constant is very soothing. But I doubt many would appreciate that since most people talk in a "flawed" manner that's quite normal everyday.

sadmanzaid
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It is to the power 1 so it cannot be expanded. It is still a+bx

ExamSolutions_Maths
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Well you're just a lifesaver. God bless you!

mrawesomesupercool
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Why do you not also binomially expand the (a+bx), as a(1+bx/a) and then multiply the resultant brackets out for x, x2 and x3?
Thanks,

JohnSmith-ojjp
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Why, for the expansion, do you multiply a by 3/4, but not by 1/4?
I dont see why a is multiplied by one thing, and b by the other.

Nisfornarwhal
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NO WAIT i see. Just a very strange thing, ive probably forgotten it from core 2 or whenever i first learnt it. Thanks.

Nisfornarwhal
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i do not for the life of me understand this it makes no sense I'm not seeing it if i wanted answers i could've just checked the mark scheme the video requires proper explanations provide understanding.

lethaladversary