Factorise: 9 a(3 a-5 b)-12 a^2(3 a-5 b) - Vidyadip

Question

Factorise:
$9 a(3 a-5 b)-12 a^2(3 a-5 b)$

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Answer

$9 a(3 a-5 b)-12 a^2(3 a-5 b)$
$=3 a(3 a-5 b)(3-4 a)$

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