Question

(a +b ) (a2 - ab + b2 ) + ( a - b) ( a2 + ab + b2 )​

Answer 1

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

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

=2a^3

hope my answer helps you!

Answer 2

Answer:

The answer is given above, sorry for cutting and in the second step the left out ones are kept in the box.