Algebra Revision

To factorise an equation, such as this one: X sqaured + 12x + 36: we need to find out what numbers go into both 12 and 36. In this case, we know that 6 goes into both numbers. If you really want to be challanging, trying adding a =0 onto the end

We then put the equation into brackets like so:

(x+6)(x+6).

(x+6)(x+6)=0

X sqaured +12x+36=0

12x=-36

x=-3