Question

Which expression is equivalent to 7^3 * 7^-57

a. 7^2
b. 7^7
c. 1/7^2
d. 1/7^7
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Answer 1

c. (1/7^2) is the answer

Answer 2

c. 1/7^2

Explanation:

As,

`{7}^(3) * {7}^( - 5)`

`= {7}^(3 - 5)`

`= {7}^( - 2)`

`= \frac{1}{ {7}^(2) }`