Question
Factorise:
$x^2 - 4x + 3$
$x^2 - 4x + 3$
✓
Answer
$x^2 - 4x + 3$
$= x^2 - 3x - x + 3$
$= x(x - 3) - 1(x - 3)$
$= (x - 3)(x - 1)$
$= x^2 - 3x - x + 3$
$= x(x - 3) - 1(x - 3)$
$= (x - 3)(x - 1)$
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