SOLVE QUADRATIC EQUATIONS BY FACTORISING

TIP: When doing these sort of problems, remember four things:

a) Factors are numbers which when multiplied together give the number you want to     factorise. For example, factors of 8 are 1 x 8 or -1 x -8 or 4 x 2 or -4 x -2.

b) Factorising is the opposite of expanding the brackets - a good way to check your answer.

c) If you are dealing with equations of the form x² + bx + c, find 2 factors of c, which
    when added together will give you b.

d) If you are dealing with equations of the form ax² + bx + c, find 2 factors of a     multiplied by c which when added together will give you b.

Factorise and hence solve the following quadratic equations: