Use the power of power rule to rewrite each expression as a single exponent

1. ((-4)^-5)^-4
2.(8^3)^16
3. ((-2.3)^7/^2
4.((- 1/3)^-2/^-5
5.(5^12)^-3
6. ((5/4)^4)^13

2 answers

just realize that since
u^n = u*u*u* ...*u (n times) then
(u^m)^n = u^m * u^m * ... * u^m (n times)
that is just u^(m+m+m...+m) (n times) = u^(mn)
so,
((-4)^-5)^-4 = (-4)^(-5 * -4) = (-4)^20 = 4^20

((- 1/3)^-2/^-5 ??? I assume you mean
((- 1/3)^-2)^-5
= (-1/3)^(-2 * -5) = (-1/3)^10 = (-3^-1)^10 = 3^-10 = 1/3^10

note that all even powers are positive, since negative * negative = positive

now you try the rest; post your work if you get stuck.
google can provide many more fine examples, discussions, and videos.
Rewrite the expression using exponet (2 to the power of 18) to the power of 8