AS/A2 Pure 2 Pure 3

P1 Topic 2: Algebra
Solving quadratic inequalities
To solve a quadratic inequality we use the standard method of factorising.

Summary When solving any inequality ax2+bx+c < 0, you will first need to solve the equation ax2+bx+c = 0 Note the difference that positive or negative a makes to the solution This page uses HotEqn.