Докажите тождество (a-d)(a^2-d^2)=(a+d)(a-d)^2

Question

Докажите тождество
(a-d)(a^2-d^2)=(a+d)(a-d)^2

Answer 1

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