Question

сократите дробь: - (8ab)/(ab-3a^2)

Answer 1

$-frac{8ab}{ab-3a^2}=-frac{a*8b}{a*b-a*3a}=-frac{a*8b}{a*(b-3a)}=-frac{8b}{(b-3a)}=frac{8b}{-(b-3a)}=frac{8b}{3a-b}$