Multiply.
-$(-9 y-7)\left(3 y^{2}-y-3\right)$
A) $-27 y^{3}+34 y+21$
B) $12 y^{2}+34 y+21$
C) $-27 y^{3}-12 y^{2}+34 y+21$
D) $-27 y^{3}-30 y^{2}+34 y+21$

Question

Quizplus · Accepted Answer

To multiply the given expressions, distribute each term in the first polynomial across each term in the second polynomial and then combine like terms. The correct expansion is $-27y^3 - 12y^2 + 34y + 21$.

Multiply - (−9y−7)(3y2−y−3)(-9 y-7)\left(3 y^{2}-y-3\right)(−9y−7)(3y2−y−3) A) −27y3+34y+21-27 y^{3}+34 y+21−27y3+34y+21 B) 12y2+34y+2112 y^{2}+34 y+2112y2+34y+21

Multiply
- $(-9 y-7)\left(3 y^{2}-y-3\right)$ A) $-27 y^{3}+34 y+21$ B) $12 y^{2}+34 y+21$