Answer :
We must find the sum of the polynomials:
[tex]\begin{gathered} p(x)=5x^3-4x, \\ q(x)=8x+8. \end{gathered}[/tex]The sum of the polynomials give:
[tex]p(x)+q(x)=(5x^3-4x)+(8x+8)=5x^3+4x+8.[/tex]Answer
[tex]5x^3+4x+8[/tex]
We must find the sum of the polynomials:
[tex]\begin{gathered} p(x)=5x^3-4x, \\ q(x)=8x+8. \end{gathered}[/tex]The sum of the polynomials give:
[tex]p(x)+q(x)=(5x^3-4x)+(8x+8)=5x^3+4x+8.[/tex]Answer
[tex]5x^3+4x+8[/tex]