Question
Factorise : $x^2 - 24x - 180$
✓
Answer
$x^2 - 24x - 180$
$= x^2 - 30x + 6x - 180$
$= x(x - 30) + 6(x - 30)$
$= (x - 30)(x + 6)$
$= x^2 - 30x + 6x - 180$
$= x(x - 30) + 6(x - 30)$
$= (x - 30)(x + 6)$
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