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Completing the square

Maths and statistics discussion, revision, exam and homework help.

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1. Re: Completing the square
(Original post by zed963)

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No, there is a double bracket. Look at what I wrote again...
2. Re: Completing the square
(Original post by zed963)

open out brackets

here, i editted your work. I hope this helps,
3. Re: Completing the square
Oh I really miss maths classes : (
4. Re: Completing the square
(Original post by Pink Liquid)
Oh I really miss maths classes : (
i miss high school ...so much so i'm thinking about becoming a school teacher so I can go back The real world sucks
5. Re: Completing the square
(Original post by rock_climber86)
here, i editted your work. I hope this helps,
So you basically do 2 * -1 = -2
6. Re: Completing the square
(Original post by zed963)
So you basically do 2 * -1 = -2
Yes, because the first step was factorizing a 2 out of the entire expression, i.e. the expression that includes the -1 that results when you complete the square inside the expression you took the 2 out of.
7. Re: Completing the square
(Original post by zed963)
So you basically do 2 * -1 = -2
exactly
8. Re: Completing the square
(Original post by zed963)
Write in the form

How would I do this and what is the half of B
expand the rhs.

Comparing coefficients we see,

Should be easier to just do By the difference of 2 squares
Last edited by Blutooth; 07-07-2012 at 13:44.

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Last updated: July 7, 2012
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