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Aleonysh [2.5K]
3 years ago
8

What is the product of -5x^5(-8x^4-9x-9)

Mathematics
1 answer:
Phoenix [80]3 years ago
5 0
-5x^5 * -8x^4 - 5x^5*-9x - 5x^5*-9

= 40x^9 + 45x^6 + 45x^5
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Which expressions are equivalent to 3(6+b)-(2b + 1)?
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Answer:

18+3b-2b-1

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Step-by-step explanation:

\mathrm{Using\:the\:distributive\:law}:\quad \:-\left(a+b\right)=-a-b

-\left(2b+1\right)=-2b-1

=3\left(6+b\right)-2b-1

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\mathrm{Group\:like\:terms}

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\mathrm{Subtract\:the\:numbers:}\:18-1=17

=3b-2b+17

\mathrm{Add\:similar\:terms:}\:3b-2b=b

=b+17

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