Life gets much more complicated when we have to solve equations of the form ax² + bx + c = 0. Fortunately there's a formula we can use to solve them:
Let's use this equation to solve: x²  x  2 = 0 To solve, all we need to know are the values of a, b and c from the standard equation. In this case 1, 1 and 2 respectively. N.B. This formula is normally given on exam papers  phew!
