Factorise the following expressions completely

${{a}^{3}}+{{b}^{3}}$
${{a}^{3}}-{{b}^{3}}$

Question

Factorise the following expressions completely ${{a}^{3}}+{{b}^{3}}$ ${{a}^{3}}-{{b}^{3}}$

Accepted Answer

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

Sum and Difference of Cubes