Factorising Quadratic Expressions (Leaving Cert Mathematics): Quizzes

$ax^2 + bx + c$ where $a \neq 0$

2

Rewrite it as a product of simpler terms

The middle term

$(x + 5)(x + 2)$

For $ax^2 + bx$ with no constant term

$3x(x - 2)$

$x^2 - y^2 = (x + y)(x - y)$

$(x + 5)(x - 5)$

Common factors

Expand the brackets to check