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2 years ago

Select the equivalent expression (7^2 x 5^6)^4

Mathematics

1 answer:

iris [78.8K]2 years ago

3 0

Answer:

The answer is B.

${( {7}^{2} . {5}^{6}) }^{4} \\ = {7}^{8} . {5}^{24}$

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What does Descartes' rule of signs tell you about the possible number of positive real zeros and the possible number of negativ

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Answer:

3 or 1 positive real zeros
0 negative real zeros

Step-by-step explanation:

The signs of the coefficients of the given terms are ...

+ - + -

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2 years ago

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vlada-n [284]

Answer:

-2x²(x + 1)(x - 4)

Step-by-step explanation:

Hello!

Factor:

$-2x^4 + 6x^3 + 8x^2$
$-2x^2(x^2 - 3x - 4)$ Take out GCF

Think: What numbers add up to -3 and multiply to -4?

Answer: -4 and 1

Continue:

$-2x^2(x^2 - 3x - 4)$
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$-2x^2(x(x - 4) + 1(x - 4))$ Factor by Grouping
$-2x^2(x + 1)(x - 4)$

The complete factored form is -2x²(x + 1)(x - 4)

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1 year ago