Question
Factorise the following by splitting the middle term:$x^2 + 6x + 8$
✓
Answer
$x^2 + 6x + 8$
$= x^2 + 4x + 2x + 8$
$= x(x + 4) + 2(x + 4)$
$= (x + 4)(x + 2).$
$= x^2 + 4x + 2x + 8$
$= x(x + 4) + 2(x + 4)$
$= (x + 4)(x + 2).$
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