Multiply.
-$-4 x^{3}\left(-5 x^{5}+3 x^{4}\right)$
A) $20 x^{8}-12 x^{7}$
B) $20 x^{8}+12 x^{7}$
C) $20 x^{8}+3 x^{4}$
D) $20 x^{2}-12 x$

Name: Multiply. -$-4 x^{3}\left(-5 x^{5}+3 x^{4}\right)$ A) $20 x^{8}-12 x^{7}$ B) $20 x^{8}+12 x^{7}$ C) $20 x^{8}+3 x^{4}$ D) $20 x^{2}-12 x$
Brand: Quizplus
Rating: 4.8 (30 reviews)

Question

Quizplus · Accepted Answer

When multiplying polynomials, you multiply the coefficients and add the exponents of like bases. Thus, $-4x^3(-5x^5) = 20x^{3+5} = 20x^8$ and $-4x^3(3x^4) = -12x^{3+4} = -12x^7$, resulting in $20x^8 - 12x^7$.

Multiply - −4x3(−5x5+3x4)-4 x^{3}\left(-5 x^{5}+3 x^{4}\right)−4x3(−5x5+3x4) A) 20x8−12x720 x^{8}-12 x^{7}20x8−12x7 B) 20x8+12x720 x^{8}+12 x^{7}20x8+12x7

Multiply
- $-4 x^{3}\left(-5 x^{5}+3 x^{4}\right)$ A) $20 x^{8}-12 x^{7}$ B) $20 x^{8}+12 x^{7}$