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If x = 4, then

If x = 4, then
(A)   –14
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Press: Set N - Exponents & Roots

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Posted: 03/20/2012 22:44
The answer to this should be 18, correct? If you raise a negative number to an even power it should always be positive. Plus 2 would equal 18.
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Posted: 03/21/2012 00:13
Justin, sorry to disappoint. The order of operations is exponent first, then negation. Remember PEMDAS (parentheses, exponent, multiplication, division, addition, subtraction)? Negation is basically multiplying by -1. This is a trick question. So you would raise 2 to the power first, then negating, i.e., multiplying by -1.
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Posted: 03/21/2012 08:44
Ahhhh ok, that was tricky!
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If x = 4, then 
Posted: 02/26/2014 18:17
The answer was wrong, if answer is -14, you need(-2),not 2
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Posted: 02/28/2014 10:45
Michael, the answer is not wrong. Please look up the discussion thread for explanation.
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