Factorise: 2 x^2-17 x-30 - Vidyadip

Question

Factorise:
$2 x^2-17 x-30$

✓

Answer

$2 x^2-17 x-30$
$=2 x^2-20 x+3 x-30$
$\{2 × (-30) = -60, -17 = -20 + 3, -60 = -20 × 3\}$
$= 2x(x - 10) + 3(x - 10) $
$= (x - 10)(2x + 3)$

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