Let's solve the following operation between polynomials
[tex]\begin{gathered} (10h^3+5h-4) \\ +(4h^3-3h+1) \end{gathered}[/tex]To solve it we will group the common terms
[tex]\begin{gathered} 10h^3+4h^3=14h^3 \\ \\ 5h-3h=2h \\ \\ -4+1=-3 \end{gathered}[/tex]The complete answer is
[tex]14h^3+2h-3[/tex]