Question

Can someone solve (x+h)^3. Please show the step-by-step.

Answer 1

(x+h)^3 = (x+h)(x+h)(x+h)
= (x+h)[x^2 + 2xh + h^2)
= x^3 + 2x^2h + xh^2 + hx^2 + 2xh^2 + h^3
= x^3 + 3x^2h + 3xh^2 + h^3