0,4-18000000/x^2=0

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Solution for 0,4-18000000/x^2=0 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)

0.4-(18000000/(x^2)) = 0

0.4-18000000*x^-2 = 0

-18000000*x^-2 = -0.4 // : -18000000

x^-2 = 0.00000002

-2 < 0

1/(x^2) = 0.00000002 // * x^2

1 = 0.00000002*x^2 // : 0.00000002

50000000 = x^2

x^2 = 50000000 // ^ 1/2

abs(x) = 5000*2^(1/2)

x = 5000*2^(1/2) or x = -(5000*2^(1/2))

x in { 5000*2^(1/2), -(5000*2^(1/2)) }

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