Factor by grouping.
-$6 x^{4}-4 x^{2}-15 x^{2}+10$
A) $\left(2 x^{4}-5\right)(3 x-2)$
B) $\left(2 x^{2}-5\right)\left(3 x^{2}-2\right)$
C) $\left(6 x^{2}+5\right)\left(x^{2}+2\right)$
D) $\left(2 x^{2}+5\right)\left(3 x^{2}+2\right)$

Question

Quizplus · Accepted Answer

First, combine like terms: $6x^4 - 4x^2 - 15x^2 + 10 = 6x^4 - 19x^2 + 10$. Then, factor by grouping: $6x^4 - 19x^2 + 10 = (2x^2 - 5)(3x^2 - 2)$.

Factor by Grouping 6x4−4x2−15x2+106 x^{4}-4 x^{2}-15 x^{2}+106x4−4x2−15x2+10 A) (2x4−5)(3x−2)\left(2 x^{4}-5\right)(3 x-2)(2x4−5)(3x−2) B) (2x2−5)(3x2−2)\left(2 x^{2}-5\right)\left(3 x^{2}-2\right)(2x2−5)(3x2−2)

Factor by Grouping $6 x^{4}-4 x^{2}-15 x^{2}+10$ A) $\left(2 x^{4}-5\right)(3 x-2)$ B) $\left(2 x^{2}-5\right)\left(3 x^{2}-2\right)$