17/x^2-7x

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Solution for 17/x^2-7x equation: 


D( x )

x^2 = 0

x^2 = 0

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

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

17/(x^2)-(7*x) = 0

17/(x^2)-7*x = 0

17*x^-2-7*x = 0

x*(17*x^-3-7) = 0

17*x^-3 = 7 // : 17

x^-3 = 7/17

-3 < 0

1/(x^3) = 7/17 // * x^3

1 = 7/17*x^3 // : 7/17

17/7 = x^3

x^3 = 17/7 // ^ 1/3

x = (17/7)^(1/3)

x = 0

x = 0

x in { 0} 

x = (17/7)^(1/3)

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