$-8 x(-5 x-8)$
A) $40 x^{2}-8 x$
B) $40 x^{2}+64 x$
C) $-5 x^{2}+64 x$
D) $104 x^{2}$

Name: $-8 x(-5 x-8)$ A) $40 x^{2}-8 x$ B) $40 x^{2}+64 x$ C) $-5 x^{2}+64 x$ D) $104 x^{2}$
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Question

Quizplus · Accepted Answer

The correct expansion is $40 x^{2}+64 x$. When you distribute $-8$ across $(-5x - 8)$, you multiply $-8$ by $-5x$ to get $40x$, and $-8$ by $-8$ to get $+64$, resulting in $40x^2 + 64x$.

−8x(−5x−8)-8 x(-5 x-8)−8x(−5x−8) A) 40x2−8x40 x^{2}-8 x40x2−8x B) 40x2+64x40 x^{2}+64 x40x2+64x C) −5x2+64x-5 x^{2}+64 x−5x2+64x

$-8 x(-5 x-8)$ A) $40 x^{2}-8 x$ B) $40 x^{2}+64 x$ C) $-5 x^{2}+64 x$