(1)а³+а²b-ab²-b³ (2)m²+2mn+n²-mb-nb

Question

(1)а³+а²b-ab²-b³ (2)m²+2mn+n²-mb-nb

Answer 1

А³+а²в-ав²-в³=а²(а+в)-в²(а+в)=(а+в)(а²-в²)=(а+в)(а-в)(а+в)=(а+в)²(а-в)

m²+2mn+n²-mb-nb=(m+n)²-b(m+n)=(m+n)(m+n-b)