2-7 = 1/128
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Negative 12 to the power of 2 is -144
2 to the 7th power equals 128....
It is always negative when raised to an odd power and always positive when raised to an even power -2 to the third power = -2 x -2 x -2 = -8 -2 to the fourth power = -2 x -2 x -2 x -2 = +16
A negative exponent is exactly the same as a positive one with one major exception: a negative power means divide 1 by that number. Sounds complicated but if you see it it's much simpler. 2=2/1 25=25/1 2^2=(2^2)/1 25^2=(25^2)/1 2^-2=1/(2^2) 25^-2=1/(25^2)
Negative 8 to the negative 2 power is equal to 1/(-8)^2, which simplifies to 1/64. So, the answer is 1/64. Hope that helps, sweetie!