3-X=X^(1/2)-3

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Solution for 3-X=X^(1/2)-3 equation: 


D( X )

X < 0

X < 0

X in <0:+oo)

3-X = X^(1/2)-3 // - X^(1/2)-3

3-X-X^(1/2)+3 = 0

6-X-X^(1/2) = 0

t_1 = X^(1/2)

6-1*t_1^2-1*t_1^1 = 0

6-t_1^2-t_1 = 0

DELTA = (-1)^2-(-1*4*6)

DELTA = 25

DELTA > 0

t_1 = (25^(1/2)+1)/(-1*2) or t_1 = (1-25^(1/2))/(-1*2)

t_1 = -3 or t_1 = 2

t_1 = -3

X^(1/2)+3 = 0

1*X^(1/2) = -3 // : 1

X^(1/2) = -3

( -3 < 0 i 1/2 in (0:1) ) => X naleu017Cy do O

t_1 = 2

X^(1/2)-2 = 0

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

X^(1/2) = 2

X^(1/2) = 2 // ^ 2

X = 4

X = 4

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