Question 1176998

{{{f(x)=x^3+ 2}}}
{{{g(x)=x+ 3}}}
{{{f(x)+g(x)=x^3+ 2+x + 3=x^3+x +5}}}

{{{f(x)=x^4+ 2}}}
{{{g(x)=x^2+ 3}}}
{{{f(x)*g(x)=(x^4+ 2)(x^2+ 3)=x^6 + 3 x^4 + 2 x^2 + 6}}}