Question

(a-d)•(a²-d²)=(a+d)•(a-d)² докажите тождество

Answer 1

(a-d)*(a^2-d^2)=(a+d)*(a-d)^2
(a-d)*(a-d)*(a+d)=(a+d)*(a-d)^2
(a+d)*(a-d)^2=(a+d)*(a-d)^2(верно)