Question

Factorise the following by splitting the middle terms:
a) $x^2+6x+8$

Answer 1

Given: $x^2+6x+8$
By splitting the middle term, we get,
$=x^2+2x+4x+8$
$=x(x+2)+4(x+2)$
$=(x+2)(x+4)$
Hence the answer is $(x+2)(x+4)$.