The answer is 1, whatever the value of a.
36
Negative 5 to the second power would be -5 times -5 which would be 25.
It equals 0. * * * * * Unless the question is (-x)2 + (+x)2. In that case, the answer is 2x2
8.04*10^-2 = 0.0804
Five to the negative 7th power equals 0.0000128
It doesn't. Negative one to an even power equals positive one. Negative one to an odd power equals negative one.
6 to the -2nd power = 1/366-2 = 1/62 = 1/36
Seven to the negative four power equals 0.00041649312
Negative 4 to the third power equals -64
6 to the negative 8th power equals 5.9537418076512726718488035360463e-7
4²+(-3-(-5))x2 = 16+ (-3+5)x2 = 20
(2)2