-8 ^ 4 = -8 * -8 * -8 * -8 = 4,096
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It doesn't. Negative one to an even power equals positive one. Negative one to an odd power equals negative one.
6 to the negative 4th power
Negative one half to the fourth power equals 0.0625
8^4 = 4096.
3.2 x 104/2 x 10-8 = (3.2/2) x (104+8) = 1.6 x 1012