Simplify 11c^5-9c^6+15c^5-13c^6+5c^6

$11 c^{5} - 9 c^{6} + 15 c^{5} - 13 c^{6} + 5 c^{6}$

Add $11 c^{5}$ and $15 c^{5}$ .

$- 9 c^{6} + 26 c^{5} - 13 c^{6} + 5 c^{6}$

Subtract $13 c^{6}$ from $- 9 c^{6}$ .

$- 22 c^{6} + 26 c^{5} + 5 c^{6}$

Add $- 22 c^{6}$ and $5 c^{6}$ .

$- 17 c^{6} + 26 c^{5}$