To simplify this expression, we first need to simplify (-7/8)^-1 and then raise the result to the power of -2.
(-7/8)^-1 can be simplified as the reciprocal of -7/8:
(-7/8)^-1 = -8/7
Now, we raise this result to the power of -2:
(-8/7)^-2 = (7/8)^2 = 49/64
Therefore, 7^(-2) * (-7/8)^(-1) = 49/64.
To simplify this expression, we first need to simplify (-7/8)^-1 and then raise the result to the power of -2.
(-7/8)^-1 can be simplified as the reciprocal of -7/8:
(-7/8)^-1 = -8/7
Now, we raise this result to the power of -2:
(-8/7)^-2 = (7/8)^2 = 49/64
Therefore, 7^(-2) * (-7/8)^(-1) = 49/64.