Question

Please tell full solution and no spam please​

Answer 1

(2/5)^-3 = (2/5)^2x (2/5)^-7

as we know base same then power add

(2/5)^-3 = (2/5)^(-7+2x)

-3 = -7+2x

2x = 4

x = 2

Answer 2

Answer:

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