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Schach [20]
3 years ago
5

How do I Evaluate (−9)²

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
6 0

Answer:

81

Step-by-step explanation:

you evaluate by mutiplying the number with the exponent, which is -9 multiplied by -9, which is 81 because 2 negatives multipled or divided is a positive. hope this helped a bit

kap26 [50]3 years ago
5 0

Answer:

81

Step-by-step explanation:

Here, some steps to evaluate (-9)².

Step 1 :- A negative base raised to an even powers equal positive.

  • 9 ²

Step 2 :- Write exponentiation as multiplicaton.

  • 9 × 9

Step 3 :- Multiply it .

  • 81

Another way to evaluate ( -9 ) ².

Evaluate by multiply with it's exponent.

  • -9 × -9

When two negative sign combine they formed positive

So, after multiplying we get 81.

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Answer:

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Step-by-step explanation:

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What is (4x+-7)(2x+-9)
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Step-by-step explanation:(4x+-7)=(2x+-9)

We move all terms to the left:

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We add all the numbers together, and all the variables

(4x-7)-((2x-9))=0

We get rid of parentheses

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We calculate terms in parentheses: -((2x-9)), so:

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We get rid of parentheses

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Back to the equation:

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We get rid of parentheses

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We add all the numbers together, and all the variables

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We move all terms containing x to the left, all other terms to the right

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We move all terms to the left:

(4x+-7)-((2x+-9))=0

We add all the numbers together, and all the variables

(4x-7)-((2x-9))=0

We get rid of parentheses

4x-((2x-9))-7=0

We calculate terms in parentheses: -((2x-9)), so:

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We get rid of parentheses

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Back to the equation:

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We add all the numbers together, and all the variables

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We move all terms containing x to the left, all other terms to the right

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8 0
3 years ago
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