Given the expression:
[tex]16p^4+4p^3[/tex]The GCF of p^4 and p^3 = p^3
And the greatest common factor of 16 and 4 = 4
so,
[tex]\begin{gathered} \frac{16p^4}{4p^3}=4p \\ \\ \frac{4p^3}{4p^3}=1 \end{gathered}[/tex]So, the factors of the given expression will be:
[tex]16p^4+4p^3=4p^3(4p+1)[/tex]