Question
Factorise:
$15 x^2+2 x-8$
$15 x^2+2 x-8$
✓
Answer
$15 x^2+2 x-8$
$=15 x^2-10 x+12 x-8$
$=5 x(3 x-2)+4(3 x-2)$
$=(3 x-2)(5 x+4)$
$=15 x^2-10 x+12 x-8$
$=5 x(3 x-2)+4(3 x-2)$
$=(3 x-2)(5 x+4)$
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