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D( x )
x = 0
x^2 = 0
x = 0
x = 0
x^2 = 0
x^2 = 0
1*x^2 = 0 // : 1
x^2 = 0
x = 0
x in (-oo:0) U (0:+oo)
8/(x^2)-(3/x)-4+2 = 0
8/(x^2)-3*x^-1-4+2 = 0
8*x^-2-3*x^-1-2 = 0
t_1 = x^-1
8*t_1^2-3*t_1^1-2 = 0
8*t_1^2-3*t_1-2 = 0
DELTA = (-3)^2-(-2*4*8)
DELTA = 73
DELTA > 0
t_1 = (73^(1/2)+3)/(2*8) or t_1 = (3-73^(1/2))/(2*8)
t_1 = (73^(1/2)+3)/16 or t_1 = (3-73^(1/2))/16
t_1 = (3-73^(1/2))/16
x^-1-((3-73^(1/2))/16) = 0
1*x^-1 = (3-73^(1/2))/16 // : 1
x^-1 = (3-73^(1/2))/16
-1 < 0
1/(x^1) = (3-73^(1/2))/16 // * x^1
1 = ((3-73^(1/2))/16)*x^1 // : (3-73^(1/2))/16
16*(3-73^(1/2))^-1 = x^1
x = 16*(3-73^(1/2))^-1
t_1 = (73^(1/2)+3)/16
x^-1-((73^(1/2)+3)/16) = 0
1*x^-1 = (73^(1/2)+3)/16 // : 1
x^-1 = (73^(1/2)+3)/16
-1 < 0
1/(x^1) = (73^(1/2)+3)/16 // * x^1
1 = ((73^(1/2)+3)/16)*x^1 // : (73^(1/2)+3)/16
16*(73^(1/2)+3)^-1 = x^1
x = 16*(73^(1/2)+3)^-1
x in { 16*(3-73^(1/2))^-1, 16*(73^(1/2)+3)^-1 }
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