Maths

To factorise an equation such x² + 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) = x² + 5x + 6

Examples:

c²- 3c - 10 = (c + 2)(c - 5)