Asked by Anonymous
Is there a difference between (x)^3 vs x^3?
For example, is (-2)^3 the same as -2^3?
And I think it is different if it is -(2)^3, is that correct?
For example, is (-2)^3 the same as -2^3?
And I think it is different if it is -(2)^3, is that correct?
Answers
Answered by
Steve
(x)^3 is exactly the same as x^3
(-2)^3 = (-2)(-2)(-2) = -8
-2^3 = -(2)^3 = -(2*2*2) = -8
works ok for odd powers, but not for even ones.
(-2)^3 = (-2)(-2)(-2) = -8
-2^3 = -(2)^3 = -(2*2*2) = -8
works ok for odd powers, but not for even ones.
Answered by
Anonymous
Steve,
Just to make sure I understand, could you check if this is correct..
(-2)^4 = 16
-(2)^4 = -16
Just to make sure I understand, could you check if this is correct..
(-2)^4 = 16
-(2)^4 = -16
Answered by
Steve
correct. As is -2^4 = -16
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