Maths-OCR Higher ! Just Finished It ! Watch

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Goku_ssj4
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#1
Report Thread starter 16 years ago
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how did u peeps find that !? Thought it was skankingly easy.
Only question i couldnt do (Note: ONLY !) was


x2+5x
x2+2x-15


Anyone know the solution to that where x2 being x sqaured?
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#2
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#2
Simplification, or?
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Goku_ssj4
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yes sorry ! Simplification!

If its not too much to ask a step by step would help
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#4
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#4
I've just done the Edexcel Paper 5 which I also thought was very easy. Gotta wait and see how paper 6 (calculator paper) comes out now.

Was that question a simplification, and is the -15 supposed to be part of the fraction, or separate?

On one line where * is times and / is divide:

((x*x + 5*x)/(x*x+2*x))-15

or

(x*x + 5*x)/(x*x+2*x-15)

?
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Goku_ssj4
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yup thats it !!!!!!!!

DOOOOOUGH Cant belive it ive done that like a hundred times but i switched off in the exam ! Damn.

The other questions i know I did well in though !
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#6
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#6
x^2 + 5x
-----------------
x^2 + 2x - 15

factorise:
x(x + 5)
----------------
(x - 3)(x + 5)

cancel down:
x
------
x - 3


I'd reckon
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Goku_ssj4
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cheerz just looked at x2+5x and thought **** cant do this. I forgot that i should hve factorised it !

So what did everyone else make of the paper?
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