Question

9a(3a-5b)-12a 2 (3a-5b) factorise it.

Answer 1

See the attach file for ur ans

Answer 2

$9a(3a-5b) - 12a^{2}(3a-5b) \\= 3\times 3a(3a-5b) - 4a\times 3a(3a-5b) \\= 3a(3a-5b)( 3-4a)$

Therefore.,

$\red{ Factors \:of \:9a(3a-5b) - 12a^{2}(3a-5b)}\\\green {= 3a(3a-5b)( 3-4a)}$

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