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# Stuck on this C1 Question Watch

1. Solved =)
2. Its completing the square. Factorise the whole expression to get the 2 out
3. (Original post by WildBerry)

I'm not sure how to do this question
Multiply out the bracket on the right hand side and equate the coefficients.

EDIT: What's with the neg rep? It's a perfectly valid method.

4. So now remove the 2 and put it as a factor

Then do complete the square

Then multiply the -9 and P/2 by 2 to take it out of the bracket

now, 10 must = -18+P
so P=28
q=2
and
r=3
Hope it helps

So now remove the 2 and put it as a factor

Then do complete the square

Then multiply the -9 and P/2 by 2 to take it out of the bracket

now, 10 must = -18+P
so P=28
q=2
and
r=3
Hope it helps
This.
6. Thanks alot for the help =)

Solved.

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Updated: December 29, 2010
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