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3 years ago

Select the expression equivalent to -81 x + 27.

Mathematics

1 answer:

MArishka [77]3 years ago

5 0

Answer:

B -9(9x-3)

Step-by-step explanation:

b/c -9(9x-3) means -9×9x-(-3)

= -81x+27

if you say why -(-3) is +27, I will say b/c negative times negetive it give us positive. and if you they why we don't add -81x and 27, I will say b/c they are not like terms.

like terms : are terms with the same variable and same exponent.

example:2x and 3x,5xy and 9yx and etc....

if it helpful ❤❤

THANK YOU

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jeyben [28]

Answer:

Step-by-step explanation:

Given, 

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3 years ago

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FrozenT [24]

To get the mean, you add all of the numbers, and then divide the answer by the number of numbers.

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So take the 21 from before, and if you add -1, you get 20!

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4 years ago

Read 2 more answers

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olga_2 [115]

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Step-by-step explanation:

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Answer:

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4p, 2p, p
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5ac, 7ca
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6pq, 2qp, 3pq
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If u have any confusion then u can ask hope it will help you

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3 years ago