Question
Factorise:
$2 x^2-7 x-15$
$2 x^2-7 x-15$
✓
Answer
$2 x^2-7 x-15$
$=2 x^2-10 x+3 x-15$
$=2 x(x-5)+3(x-5)$
$=(x-5)(2 x+3)$
$=2 x^2-10 x+3 x-15$
$=2 x(x-5)+3(x-5)$
$=(x-5)(2 x+3)$
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