Question

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

Answer 1

a+b）^2（a-b）^3 =（b-a）^2（b-a）^3 =（b-a）^5 ×(a+b)²(a-b)^3 =[(a+b)(a-b)]²(a-b) =(a²-b²)²(a-b) =a^5-2(a^3)b²+ab^4-(a^4)b+2a²b^3-b^5

Answer 2

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

=-(a+b)^5
=-(a^5+5a^4b+10a^3b^2+10a^2b^3+5ab^4+b^5)