290=x*(65/x)^2

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Solution for 290=x*(65/x)^2 equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

290 = (65/x)^2*x // - (65/x)^2*x

290-((65/x)^2*x) = 0

-4225*x^-1 = -290 // : -4225

x^-1 = 58/845

-1 < 0

1/(x^1) = 58/845 // * x^1

1 = 58/845*x^1 // : 58/845

845/58 = x^1

x = 845/58

x = 845/58

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