Question

Which expression is equivalent to 73 ⋅ 7−5? 72 77 1 over 7 to the 2nd power 1 over 7 to the 7th power

Answer 1

The answer is 1/7^2

Explanation:

I took the test lol

Answer 2

1/7^2

Explanation:

The applicable rules of exponents are ...

(a^b)(a^c) = a^(b+c)

a^-b = 1/a^b

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Then your expression simplifies to ...

`7^3\cdot 7^(-5)=7^(3-5)=7^(-2)=\boxed{(1)/(7^2)}`