Question

Hey can you please help me posted picture of question

Answer 1

Let us try to distribute the sums:
$(3x+6)(6x^2-3x-6)=3x(6x^2-3x-6)+6(6x^2-3x-6)\\ (3x*6x^2+3x(-3x)+3x(-6))+(6*6x^2+6(-3x)+6(-6))$
$18x^3-9x^2-18x+36x^2-18x-36=18x^3+27x^2-36x-36$.

Hence, the correct answer is D.