Question

a plus b ka whole cube

Answer 1

Answer-

$\sf (a + b) {}^{3} \\ \\ \sf (a+b)(a+b)^{2}\\ \\ \sf (a+b)(a^{2} + b^{2} + 2ab)\\ \\ \sf a(a^{2} + b^{2} + 2ab) + b (a^{2} + b^{2} + 2ab)\\ \\ \sf a{}^{3} + b{}^{3} + 3a {}^{2} b + 3ab {}^{2}\\ \\ \boxed{\sf a{}^{3} + b{}^{3} + 3ab(a + b)}$

Answer 2

Answer:(a^3+b^3) (a^2+b^2+ab)

Step-by-step explanation: