Question

(a-b) (a²+b²+ab)-(a+b)(a²+b²-ab)

Answer 1

Answer:

0

Step by step explanation

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

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

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

=(a^3- b^3)- (a^3-b^3)

=a^3-b^3-a^3+b^3

=0