10x^(-1/2)=4

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Solution for 10x^(-1/2)=4 equation: 


D( x )

x < 0

x = 0

x < 0

x = 0

x = 0

x in (0:+oo)

10*x^(-1/2) = 4 // - 4

10*x^(-1/2)-4 = 0

10*x^(-1/2) = 4 // : 10

x^(-1/2) = 2/5

-1/2 < 0

1/(x^(1/2)) = 2/5 // * x^(1/2)

1 = 2/5*x^(1/2) // : 2/5

5/2 = x^(1/2)

x^(1/2) = 5/2 // ^ 2

x = 25/4

x = 25/4

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