Sometimes we have to factorise quadratics such as 4\({x^2}\) - 19\({x}\) + 12. These are made much more difficult by the fact that there is a number (4) in front of the \({x^2}\) term (we say that ...

Sometimes we have to form quadratic equations to help us solve problems. Dave has a box which has one side of length (\({x}\) – 3) and another side of length (\({x}\) + 2). Find an expression fo ...