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Write using exponents. (–4)(–4)

A. -4^2
B. (2)^-4
C. (-4)^2
D. 2^-4

User Askaga
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1 Answer

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Remark

Using brackets, as the question has, each of the minus signs is part of the 4. That means you have 2 minus signs in total. They are multiplied together.


Two minus sign's = a plus.


Argument

D is wrong.

The power is not made minus. That would be an entirely different problem. The power and the base have been interchanged. So D has 2 mistakes.


B is also wrong for the same reason.

The power and base have been interchanged. The fact that there are or are not brackets does not make any difference.


A is wrong.

There is only one minus sign given. That cannot happen when there were two to start with.


Answer C.

The two minus signs are preserved. The 2 as a power affects both minus signs.



(-4)^(2) affects both of them.

User Mostafa Zeinali
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7.8k points

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