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What non-zero, real value of  x satisfies  (5x)^4= (10x)^3  ? Express your answer as a common fraction.

 Apr 21, 2019
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5x^4   = 10x^3

 

5x^4  - 10x^3  =  0

 

5x^3  ( x - 2)  = 0

 

x = 2      [ no fraction needed ]

 

 

cool cool cool

 Apr 21, 2019

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