AS/A2 Pure 2 Pure 3

P1 Topic 2: Algebra
Solving quadratic equations by using the formula
The display below shows how this is done. You can change the quadratic function and then see the process, step by step.

Summary When solving the quadratic equation ax2+bx+c = 0 , make sure you know how to use the formula : This formula will normally give two values, though there may only be one, and occasionally no values at all. This page uses HotEqn.