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02-11-2021
Biology

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Which of the following choices evaluates - 2x + 4x, when x = -2?
A8
B-8
C-16
D. None of these choices are correct.

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02-11-2021

Answer:

D. none of these choices are correct

Explanation:

substituting -2 as x into the expression,

-2x + 4x

-2(-2) + 4(-2)

4 + (-8)

4 - 8

-4

the answer should be -4

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