Subtract the polynomials and simplify. $$\left( - 3 r ^ { 2 } - 2 r - 4 \right) - \left( - 9 r ^ { 2 } + 7 r + 2 \right)$$
A) $- 12 r ^ { 2 } + 5 r - 2$
B) $6 r ^ { 2 } - 9 r - 6$
C) $6 r ^ { 2 } - 2 r ^ { 2 } - 7 r - 6$
D) $6 r ^ { 2 } + 5 r - 2$

Question

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The Answer of Subtract the polynomials and simplify. $$\left( - 3 r ^ { 2 } - 2 r - 4 \right) - \left( - 9 r ^ { 2 } + 7 r + 2 \right)$$
A) $- 12 r ^ { 2 } + 5 r - 2$
B) $6 r ^ { 2 } - 9 r - 6$
C) $6 r ^ { 2 } - 2 r ^ { 2 } - 7 r - 6$
D) $6 r ^ { 2 } + 5 r - 2$

Subtract the Polynomials and Simplify (−3r2−2r−4)−(−9r2+7r+2)\left( - 3 r ^ { 2 } - 2 r - 4 \right) - \left( - 9 r ^ { 2 } + 7 r + 2 \right)(−3r2−2r−4)−(−9r2+7r+2)

Subtract the Polynomials and Simplify $\left( - 3 r ^ { 2 } - 2 r - 4 \right) - \left( - 9 r ^ { 2 } + 7 r + 2 \right)$