Simplify 24p^3-15p^2+3p-15p^3+13p^2-7p

$24 p^{3} - 15 p^{2} + 3 p - 15 p^{3} + 13 p^{2} - 7 p$

Subtract $15 p^{3}$ from $24 p^{3}$ .

$9 p^{3} - 15 p^{2} + 3 p + 13 p^{2} - 7 p$

Add $- 15 p^{2}$ and $13 p^{2}$ .

$9 p^{3} - 2 p^{2} + 3 p - 7 p$

Subtract $7 p$ from $3 p$ .

$9 p^{3} - 2 p^{2} - 4 p$