Question

помогите Сократить дробь

Answer 1

$\frac{(a - b {)}^{2} }{ {b}^{2} - {a}^{2} } = \frac{(a - b {)}^{2} }{(b - a)(b + a)} = \frac{(a - b {)}^{2} }{ - (a - b)(b + a)} = \frac{b - a}{b + a}$