Question

please helped me in class work

Answer 1

${ \frac{1}{5} }^{ - 3} \times { \frac{1}{5} }^{ - 5} = { \frac{1}{5} }^{x} \\ { \frac{1}{5} }^{ - 8} = { \frac{1}{5} }^{x} \\ x = - 8$
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Answer 2

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