Multiply.
-$10 x^{4}\left(-4 x^{4}+12 x^{2}-8\right)$
A) $-40 x^{8}+120 x^{6}-80 x^{4}$
B) $-40 x^{4}+120 x^{2}-80$
C) $-40 x^{8}+12 x^{2}-8$
D) $-40 x^{8}+120 x^{6}$

Question

Quizplus · Accepted Answer

When multiplying polynomials, you multiply the coefficients and add the exponents of like bases. So, $10 x^{4}(-4 x^{4}) = -40 x^{8}$, $10 x^{4}(12 x^{2}) = 120 x^{6}$, and $10 x^{4}(-8) = -80 x^{4}$, resulting in $-40 x^{8}+120 x^{6}-80 x^{4}$.

Multiply - 10x4(−4x4+12x2−8)10 x^{4}\left(-4 x^{4}+12 x^{2}-8\right)10x4(−4x4+12x2−8) A) −40x8+120x6−80x4-40 x^{8}+120 x^{6}-80 x^{4}−40x8+120x6−80x4 B) −40x4+120x2−80-40 x^{4}+120 x^{2}-80−40x4+120x2−80

Multiply
- $10 x^{4}\left(-4 x^{4}+12 x^{2}-8\right)$ A) $-40 x^{8}+120 x^{6}-80 x^{4}$ B) $-40 x^{4}+120 x^{2}-80$