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

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Solution for (7/2)x^(-1/2)-2=-1 equation: 


D( x )

x < 0

x = 0

x < 0

x = 0

x = 0

x in (0:+oo)

(7/2)*x^(-1/2)-2 = -1 // + 1

(7/2)*x^(-1/2)-2+1 = 0

7/2*x^(-1/2) = 1 // : 7/2

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

-1/2 < 0

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

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

7/2 = x^(1/2)

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

x = 49/4

x = 49/4

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