18-(11250/x^2)

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Solution for 18-(11250/x^2) 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)

18-(11250/(x^2)) = 0

18-11250*x^-2 = 0

-11250*x^-2 = -18 // : -11250

x^-2 = 1/625

-2 < 0

1/(x^2) = 1/625 // * x^2

1 = 1/625*x^2 // : 1/625

625 = x^2

x^2 = 625 // ^ 1/2

abs(x) = 25

x = 25 or x = -25

x in { 25, -25 }

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