x^(-1/2)=2

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Solution for x^(-1/2)=2 equation: 


D( x )

x < 0

x = 0

x < 0

x = 0

x = 0

x in (0:+oo)

x^(-1/2) = 2 // - 2

x^(-1/2)-2 = 0

1*x^(-1/2) = 2 // : 1

x^(-1/2) = 2

-1/2 < 0

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

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

1/2 = x^(1/2)

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

x = 1/4

x = 1/4

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