Question

a^3-b^3+3a^2+3ab+3b^2

Answer 1

(a^3-b^3)+(3a^2+3ab+3b^2)=(a-b)(a^2+ab+b^2)+3(a^2+ab+b^2)=(a^2+ab+b^2)(a-b+3)

Answer 2

спасибо