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How Do I Factorise In Maths?
I really don’t get factorising, I’m doing a GCSE past paper and I have this question:
factorise x² 6x + 8
Could someone explain how to do it please, not just give me the answer?
Thanks xx
I think voxx meant (x4) (x2)
You look at numbers that will multiply into +8 and will add up into 6
First just do the numbers, 1 x 8 2 x 4
well that’s about it. But it has to multiply to + 8
1 x 8 = 8 1 x  8 = 8 so 2 x 4 = 8 2 x 4 = 8
now it also has to add to 6
1 + 8 = 9 1 +  8 = 9 2 + 4 = 6 2 + 4 = 6
(x2) (x4) = x2  4x  2x + 8 = x2  6x + 8
It will get faster once you can do it in your head, but those are the steps for now.
In addition to the person above, you’d write the answer like this: (x4)(x+2) Since there are two x’s(x squared equals x times x), you need two x’s in the answer…hope that makes sense. :)

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