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Luba_88 [7]
3 years ago
14

(−7) Times (−4) whats the answer

Mathematics
2 answers:
nadya68 [22]3 years ago
8 0
28. - x - = +

-7 x -4 = 28
Law Incorporation [45]3 years ago
7 0

Answer: 28

Multiplying/Dividing 2 negatives will get you a positive.

(-7)×(-4)=28

Multiplying/Dividing a positive/negative to a negative/positive will get you a negative.

Positive×Negative=Negative

Negative×Positive=Negative

Negative×Negative=Positive

Positive×Positive=Positive

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Simplify (x - square root 7)^2
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Step-by-step explanation:

Expand the following:

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x x - sqrt(7) x - sqrt(7) x - (-sqrt(7) sqrt(7))

(-1)^2 = 1:

x x - sqrt(7) x - sqrt(7) x + (sqrt(7))^2

x x = x^2:

x^2 - sqrt(7) x - sqrt(7) x + sqrt(7)^2

Cancel exponents. (sqrt(7))^2 = 7:

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Combining like terms, sqrt(7) x (-1) + sqrt(7) x (-1) = -2 sqrt(7) x:

Answer:  x^2 + -2 sqrt(7) x + 7

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3 years ago
What is the slope of the line?<br> y + 5 = 2(x + 1)
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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We also know that a negative power can bring the variable down and make it a fraction. This means that z^-^2=\frac{1}{z^2}

Now that we got these two sorted we are able to write it in a simplified form.

Answer: \frac{x^3}{z^2}

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