Week Five - Turei 18th Mei

Today we looked at factorising. This is the opposite of expanding so it means putting an expression into brackets.

• The first step is to find a common factor - something that is the same for both parts of the expression. e.g for 2a + 2b it is 2
• We write this first then put a set of brackets. e.g. 2 ( )
• We fill in the space so that it makes the original expression e.g. to make 2a we need an a and to make 2b we need a b so in the brackets we have a + b
• The final answer is 2(a + b). We can check this is the same by expanding our brackets.

Homework: 9.04