Question

simplify
please do in step by step
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Answer 1

Answer:

this is in the form of (a power m /a power n )(a power x)

Step-by-step explanation:

Answer 2

Answer:

1/9

Step-by-step explanation:

$3^{-7} / 3^{-10} *3^{-5}\\ = 1/3^{7} * 3^{10} * 1/3^{5}\\ =\frac{3^{10} }{3^{7} * 3^{5} }\\ =\frac{3^{10} }{3^{12} }\\ = 3^{10 - 12}\\ =3^{-2}\\ =1/9$