(-3)^2 - 9
7^0 - 1
3^2/3^3 - 3^2-3
(-1)^100 - 1
(5.6)^4 - 5^4.6^4
(-1)^21 - -1
(8/4)^2 - 8^2/4^2
5^0 - 1
(6^2)^5 - 6^2.5