Question 928279
{{{V = lwh}}} 

{{{3x^3 + 9x^2 + 6x}}}

{{{3x(x^2 + 3x + 2)}}}

{{{3x(x^2 +x+ 2x + 2)}}}

{{{3x((x^2 +x)+ (2x + 2))}}}

{{{3x(x(x +1)+ 2(x + 1))}}}

{{{3x(x+ 2)(x + 1)}}}

if {{{l=3x}}},{{{w=(x+ 2)}}}, and {{{h=(x + 1)}}}, your answer is:

{{{V = 3x(x+ 2)(x + 1)}}}