Question

а(а+2b)-(b+a)^2 упростите выражение

Answer 1

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

Answer 2

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