Question
Factorise the following.
$x^2- 17x + 60$
$x^2- 17x + 60$
✓
Answer
$x^2- 17x + 60$
$= x2 - (12 + 5)x + 60$
$= x2 - 12x - 5x + 60$
$= x(x - 12) - 5(x - 12)$
$= (x - 12)(x - 5)$
$= x2 - (12 + 5)x + 60$
$= x2 - 12x - 5x + 60$
$= x(x - 12) - 5(x - 12)$
$= (x - 12)(x - 5)$
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