Question

Factor completely 

2x^3 + 22x^2 + 36x

Answer 1

`2x^3 + 22x^2 + 36x=\\ 2x(x^2+11x+18)=\\ 2x(x^2+9x+2x+18)=\\ 2x(x(x+9)+2(x+9))=\\ 2x(x+2)(x+9)`

Answer 2

`2x^3+22x^2+36x \to\boxed{2x(x^2+11x+18)} \\\\ 2x(x^2+9x+2x+18)= \\\\ =2x[x(x+9)+2(x+9)]= \\\\ = \boxed{\boxed{2x(x+9)(x+2)}}`