Question

(а-в)(а+в)(а^2+в^2)=а^4-в^4 ДОКАЖИТЕ ТОЖДЕСТВО

Answer 1

$(a-b)(a+b)(a^2+b^2)=a^4-b^4$
$(a^2-b^2)(a^2+b^2)=a^4-b^4$
$a^4-b^4=a^4-b^4$

Answer 2

(a^2-b^2)(a^2+b^2)=a^4-b^4