7/x^2-100

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Solution for 7/x^2-100 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)

7/(x^2)-100 = 0

7*x^-2 = 100 // : 7

x^-2 = 100/7

-2 < 0

1/(x^2) = 100/7 // * x^2

1 = 100/7*x^2 // : 100/7

7/100 = x^2

x^2 = 7/100 // ^ 1/2

abs(x) = (7/100)^(1/2)

x = (7/100)^(1/2) or x = -(7/100)^(1/2)

x in { (7/100)^(1/2), -(7/100)^(1/2) }

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