Question

Is -2^4=+/- 16?

Answer 1

Any number elevated to an even power will always be positive.

Answer 2

(unless you're dealing with complex numbers xd)

Answer 3

(-2)^4 = 16 but -2^4 = -16

Answer 4

There are two operations in -2^4 = -16: the exponent, then the multiplication of -1

Answer 5

\[(\sqrt[5]{-32})^4\]

Answer 6

\[(\sqrt[5]{-32})^4=(\sqrt[5]{-2^5})^4=(-2)^4=16\]

Answer 7

Thank you asnaseer! :) What about x^4+9=90?
That would be x=3?