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Why is -2 * -2 = 4 but -2^2 = -4? Shouldn't it be also 4 because -2^2 = -2 * -2 or is it?

 Feb 19, 2020
 #1
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Exponentiation takes priority over negation, so -2^4 is -(2^4).  If you want the negation to take priority you would need to emphasise this by writing (-2)^4.

 Feb 19, 2020
 #2
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Thank you very much!

Guest Feb 19, 2020

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