Question 1135021

{{{y=(1+x^2+x^3) (3x+5)}}}

{{{y=1*3x+x^2*3x+x^3*3x+1*5+x^2*5+x^3*5}}}

{{{y=3x+3x^3+3x^4+5+5x^2+5x^3}}}

{{{y=3x^4+8x^3+5+5x^2+3x+5}}}


{{{(d/dx)(3x^4 + 8 x^3 + 5 + 5 x^2 + 3 x + 5) = 12 x^3 + 24 x^2 + 10 x + 3}}}