Subtract $\left( 9 m ^ { 3 } + 2 m + 4 \right)$ from $\left( - 6 m ^ { 3 } - 9 m - 9 \right)$.
A) $- 15 m ^ { 3 } - 7 m - 5$
B) $- 15 m ^ { 3 } - 11 m - 13$
C) $- 6 m ^ { 3 } - 9 m ^ { 2 } - 11 m - 13$
D) $15 m ^ { 3 } + 11 m + 13$

Question

Quizplus · Accepted Answer

To subtract the polynomial $\left( 9 m ^ { 3 } + 2 m + 4 \right)$ from $\left( - 6 m ^ { 3 } - 9 m - 9 \right)$, you subtract each corresponding term: $(-6m^3 - 9m^3) + (-9m - 2m) + (-9 - 4)$, which simplifies to $-15m^3 - 11m - 13$.

Subtract (9m3+2m+4)\left( 9 m ^ { 3 } + 2 m + 4 \right)(9m3+2m+4)

Subtract $\left( 9 m ^ { 3 } + 2 m + 4 \right)$