Question

factorise (a+b) - Заb(a+b)​

Answer 1

$\bold{(a+b) - Заb(a+b)}$

$\bold{GCF = a+ba+b}$

$\bold{(a+b)(\frac{a+b}{a+b}+\frac{-3ab(a+b)}{a+b})}$

$\bold{(a+b)(1−3ab)}$