Question

$12 {a}^{2} + 3ab - a {b}^{2} - 4ab$
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Answer 1

Hello mate.....

given....

$12a {}^{2} + 3ab - ab {}^{2} - 4ab$

$12a {}^{2} - ab {}^{2} - ab$

$a(12a - b {}^{2} - b)$

Hope it helps you....