How do you factorise?

Factorising basically means put whatever equation you are given into brackets. So, E.g. x2 + xFirst you want to look for a common factor which here is X. Therefore, the answer would be x(x+1).To check this you can then expand the brackets again to check you have the correct answer.So, (X x X) + (X x 1) = x2 + x

LD

Related Maths GCSE answers

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Solve the simultaneous equations. 2x + y = 18 x - y = 6


Jo wants to work out the solutions of x^2 + 3x – 5 = 0 She says, ‘‘The solutions cannot be worked out because x^2 + 3x – 5 does not factorise to (x + a)(x + b) where a and b are integers.’’ Is Jo correct?


Solve the simultaneous equations 3x + 2y = 12 and 10y = 7x + 16


n is an integer such that 4n+6≤18 and 5n/(n^2+4)>1. Identify the range of possible values of n.