I am lost on this problem.
-2^-3
The answer goes like this:
-1/2^3
I think I understand up to here. But where does the double negative come in on this next step?
--1/2*2*2
--1/4*2
--1/8
-*8/8-1/8
-8/8-1/8
-8-1/8
-9/8
That's very wrong
according to the question we need to find what -2^-3 is,
now get rid of the negative integer by converting the base(-2) to a fraction
so this implies (1/-2)^3
now it's easy, the answer is 1/-8
but we need to convert this to standard from, so we multiply both sides of the fraction by -1
so the final answer is -1/8
next time, try separating the exponents from the base with a parenthesis