Question
Factorise the following by splitting the middle term:$x^2 + 5x - 6$
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Answer
$x^2 + 5x - 6$
$= x^2 + 6x - x - 6$
$= x(x + 6) - 1(x + 6)$
$= (x + 6)(x - 1).$
$= x^2 + 6x - x - 6$
$= x(x + 6) - 1(x + 6)$
$= (x + 6)(x - 1).$
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