Question

A using standard formulae expand : ( 3a by 2b - 2b by 3a )
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Answer 1

$= > \frac{3a}{2b} - \frac{2b}{3a}$

$= > \frac{9 {a}^{2} - 4 {b}^{2} }{6ab}$

Hope this answer helps you ^_^ !