Question 1021427


{{{f(x) = x^2 + 2x}}}
{{{g(x) = 4 -x}}}
{{{(fg)(x) = (x^2 + 2x)(4-x)}}}

{{{(fg)(5) = (5^2 + 2*5)(4-5)}}}

{{{(fg)(5) = (25 + 10)(-1)}}}

{{{(fg)(5) = (35)(-1)}}}

{{{(fg)(5) = -35}}}