If m = 2, what is m^(m)?

Question

If  m = −2 , what is  −m^{(−m)} ?

A. −16
B. −4
C. −1/4
D. 1/4
E. 4

BrentGMATPrepNow · Accepted Answer

Useful property:  -k = (-1)(k)

So we can write the expression as follows:  (−1)(m)^{(−1)(m)}

Plug  m = −2  into the expression to get:  (−1)(-2)^{(−1)(-2)}=(−1)(-2)^{2}=(−1)(4) = -4

Answer: B

jatin22 · Answer

m = -2
-m = 2
(-m)^(-m) = 2^2 = 4

rashmi97621 · Answer

4. Since -2^(-(-2) = -2^2 = 4

Regor60 · Answer

So the negative of a number indicates an operation on that number, not a new number that is the negative of the former?

So how is a new number that is the negative of a number then indicated without introducing an operation?

Parentheses (-m)^-m ?

Posted from my mobile device

BrentGMATPrepNow · Answer

That's right.

Aside: I tried entering the above 2-word response, but the site says my post is too short. 
It should be fine now.

bumpbot · Answer

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If m = 2, what is m^(m)?

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If m = 2, what is m^(m)?

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