It’s a pillar of algebra and allows you to solve equations like Ax 2 +Bx+C=0 ... Before we look at the new solution, let’s talk about why you want to solve quadratic equations.

An alternative method to solve a quadratic equation is to complete the square ... adding and subtracting the square root to find the two solutions. \(x = -3 \pm \sqrt{19}\) The first solution ...

If a quadratic equation can be factorised, the factors can be used to find the roots of the equation. The equation factorises to give \((x + 3) (x - 2) = 0 \) so the solutions to the equation \(x ...