Subtract.
-$\left( 2.6 x ^ { 3 } - 6.2 x ^ { 2 } - 1 \right) - \left( 8.5 x ^ { 3 } - 2.4 x ^ { 2 } + 3 \right)$
A) $11.1 x ^ { 3 } - 3.8 x ^ { 2 } - 4$
B) $- 5.9 x ^ { 3 } - 3.8 x ^ { 2 } + 4$
C) $- 5.9 x ^ { 3 } - 8.6 x ^ { 2 } - 4$
D) $- 5.9 x ^ { 3 } - 3.8 x ^ { 2 } - 4$

Question

Quizplus · Accepted Answer

Subtracting the second polynomial from the first gives: $2.6x^3 - 8.5x^3 = -5.9x^3$, $ -6.2x^2 + 2.4x^2 = -3.8x^2$, and $-1 - 3 = -4$, resulting in $-5.9x^3 - 3.8x^2 - 4$.

Subtract - (2.6x3−6.2x2−1)−(8.5x3−2.4x2+3)\left( 2.6 x ^ { 3 } - 6.2 x ^ { 2 } - 1 \right) - \left( 8.5 x ^ { 3 } - 2.4 x ^ { 2 } + 3 \right)(2.6x3−6.2x2−1)−(8.5x3−2.4x2+3)

Subtract
- $\left( 2.6 x ^ { 3 } - 6.2 x ^ { 2 } - 1 \right) - \left( 8.5 x ^ { 3 } - 2.4 x ^ { 2 } + 3 \right)$