Factorising Quadratics

In class we looked at factorising quadratics. Remember a quadratic expression has a squared term in it.  Many quadratics can be factorised by putting it into two brackets. Sometimes it helps to take out any common factors first. This website has a summary of the method for factorising quadratics.

We then focused on a special type of quadratics – a difference of two squares.  It is important that you can recognise a difference of two squares and know how to factorise it.  Here are some simple examples.  If you want to try some more challenging questions check out this website, it includes answers.  Or try the questions below, which are particularly tricky!