# how to factorise?

# Factorising quadratic equations

To factorise an equation such x^{2} + 5x + 6, you need to look for two numbers which add up to make 5 and multiply to give 6

The factor pairs of 6 are 1 and 6, 2 and 3

2 and 3 add up to 5

So (x +2 ) (x+3) = x^{2} + 5x + 6

Factorising expressions gets trickier with negative numbers.

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- Created by: Annie Agutu
- Created on: 27-11-11 08:12

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