Look at the National 4 factorising section before continuing. When a question asks you to 'solve' a quadratic equation, this means that you are to find the roots of the quadratic. In other words ...

2 we have: (0) × (5) = 0. If \({x ... these would be incredibly difficult to factorise so the quadratic formula is used. Key fact When solving quadratics in exams it is common for the ...

At first glance, the equation seemingly shows a pattern, one that is not easily cracked. Can you solve the simple math riddle? 11 x 11 = 4 30 x 20 = 5 15 x 10 = 7 24 x 13 = ? The key to solving ...