The result of the following expression (a+b)(a2+b2−ab) is ___.
(a)3−(b)3
(a+b)3
(a−b)3
(a)3+(b)3
(a+b)(a2+b2−ab)
= a3+ab2−a2b+a2b+b3−ab2
= (a)3+(b)3
Question 84 (ix)
Simplify
(a−b)(a2+b2+ab)−(a+b)(a2+b2−ab)
(a+b)(a2+b2−ab) =