Multiply using the FOIL method.
-$\left( - 5 x ^ { 2 } + 6 \right) \left( - 2 x ^ { 2 } - 1 \right)$
A) $- 7 x ^ { 4 } - 7 x ^ { 2 } - 7$
B) $- 7 x ^ { 4 } - 7 x ^ { 2 } - 6$
C) $10 x ^ { 4 } - 7 x ^ { 2 } - 6$
D) $10 x ^ { 4 } - 7 x ^ { 2 } - 7$

Question

Quizplus · Accepted Answer

Using the FOIL method: First terms: $(-5x^2) \cdot (-2x^2) = 10x^4$, Outer terms: $(-5x^2) \cdot (-1) = 5x^2$, Inner terms: $6 \cdot (-2x^2) = -12x^2$, Last terms: $6 \cdot (-1) = -6$. Adding these together: $10x^4 + (5x^2 - 12x^2) - 6 = 10x^4 - 7x^2 - 6$.

Multiply Using the FOIL Method (−5x2+6)(−2x2−1)\left( - 5 x ^ { 2 } + 6 \right) \left( - 2 x ^ { 2 } - 1 \right)(−5x2+6)(−2x2−1)

Multiply Using the FOIL Method $\left( - 5 x ^ { 2 } + 6 \right) \left( - 2 x ^ { 2 } - 1 \right)$