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# A Level Maths markschemes (AQA) - Do I have to be 'exact'? Watch

1. If the question is:
"Expand (x+2)(x+3)(x+4)"

And my first step is:
(x+2)(x^2+7x+12)

But the markscheme awards the first method mark (M1) for:
(x^2+5x+6)(x+4)

Would I lose that mark even though I'm right and eventually reach the correct final answer (x^3+9x^2+26x+24)?

I keep finding myself in similar situations when practicing for my MPC1 paper. Am I right to assume I'd get the mark or would I lose it for not being 'exact'?

EDIT: I mean not just in the above situation - if I use a different method to the one stated (i.e. factorize things in a different order or collect like terms first) would I lose marks?
2. (Original post by brokenlevel23)
If the question is:
"Expand (x+2)(x+3)(x+4)"

And my first step is:
(x+2)(x^2+7x+12)

But the markscheme awards the first method mark (M1) for:
(x^2+5x+6)(x+4)

Would I lose that mark even though I'm right and eventually reach the correct final answer (x^3+9x^2+26x+24)?

I keep finding myself in similar situations when practicing for my MPC1 paper. Am I right to assume I'd get the mark or would I lose it for not being 'exact'?
The first mark is for expanding two brackets so I believe you would get the mark.
3. I highly doubt you would lose a mark, as there is no actual rule that states which factors to multiply first.
4. If you get the right answer using any valid method and it hasn't stated specifically how to do it, you'll get the marks.
5. They usually have an abbreviation next to it "OE" which means "or equivalent", your expansion of the other bracket first is equivalent to what they have stated.

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