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

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Solution for a-a^(1/2)-6=0 equation: 


D( a )

a < 0

a < 0

a in <0:+oo)

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

t_1 = a^(1/2)

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

t_1^2-t_1-6 = 0

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

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 = -2

a^(1/2)+2 = 0

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

a^(1/2) = -2

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

t_1 = 3

a^(1/2)-3 = 0

1*a^(1/2) = 3 // : 1

a^(1/2) = 3

a^(1/2) = 3 // ^ 2

a = 9

a = 9

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