Question

Find x if 5 raise to power 8 x is 625 raise to power 2

Answer 1

> 625^x = 25/5^x

=> 5^4x = 5²/5^x

=> 5^4x = 5^(2-x)

=> 4x = 2-x

=> 4x + x = 2

=> 5x = 2

=> x = 2/5 or 0.4

Answer 2

The answer is 1/2

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