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

Question

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

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Answer

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

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