Solving Quadratic Equations by Completing the Square

Solving Quadratic Equations by Completing the Square

Home > Quadratics Solving Quadratic Equations by Completing the Square Not all quadratics factorise easily. For instance, $x^2+6x+2$ cannot be factorised by simple factorisation. In other words, we cannot write $x^2+6x+2$ in the form $(x-a)(x-b)$ where $a$ and $b$ are rational. An alternative way to solve this equation $x^2+6x+2$ is by completing the square. Equations [...]