2(-3) = 1/ (23) = 1/8 = 0.125
70.125 = 1.275 373...
FYI:
(72)-3 = 0.000 008 499...
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3-7 equals 0.00045724737
negative seven, but if you were subtracting -2 from -5 it would be -3
The answer to -7^2 = +49. Remember, a negative times a negative is a positive as in this case.
2 to the power of 7 minus 3 to the power of 3 divided by 7 is equal to 124 1/7 ≈ 124.14
-7/3 - -2/3= -7/3 + -2/3 I am not going to do this for you. But since you have a common denominator, all you really have to do is add the top numbers.