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D( x )
0.125-x = 0
0.125-x = 0
0.125-x = 0
0.125-x = 0 // - 0.125
-x = -0.125 // * -1
x = 0.125
x in (-oo:0.125) U (0.125:+oo)
((2*x)^2)/(0.125-x) = 0.075 // - 0.075
((2*x)^2)/(0.125-x)-0.075 = 0
(4*x^2)/(0.125-x)-0.075 = 0
(4*x^2)/(0.125-x)+(-0.075*(0.125-x))/(0.125-x) = 0
4*x^2-0.075*(0.125-x) = 0
4*x^2+0.075*x-0.009375 = 0
4*x^2+0.075*x-0.009375 = 0
4*x^2+0.075*x-0.009375 = 0
DELTA = 0.075^2-(-0.009375*4*4)
DELTA = 0.075^2+0.15
DELTA = 0.155625
DELTA > 0
x = ((0.075^2+0.15)^(1/2)-0.075)/(2*4) or x = (-(0.075^2+0.15)^(1/2)-0.075)/(2*4)
x = ((0.075^2+0.15)^(1/2)-0.075)/8 or x = (-((0.075^2+0.15)^(1/2)+0.075))/8
(x+((0.075^2+0.15)^(1/2)+0.075)/8)*(x-(((0.075^2+0.15)^(1/2)-0.075)/8)) = 0
((x+((0.075^2+0.15)^(1/2)+0.075)/8)*(x-(((0.075^2+0.15)^(1/2)-0.075)/8)))/(0.125-x) = 0
((x+((0.075^2+0.15)^(1/2)+0.075)/8)*(x-(((0.075^2+0.15)^(1/2)-0.075)/8)))/(0.125-x) = 0 // * 0.125-x
(x+((0.075^2+0.15)^(1/2)+0.075)/8)*(x-(((0.075^2+0.15)^(1/2)-0.075)/8)) = 0
( x+((0.075^2+0.15)^(1/2)+0.075)/8 )
x+((0.075^2+0.15)^(1/2)+0.075)/8 = 0 // - ((0.075^2+0.15)^(1/2)+0.075)/8
x = -(((0.075^2+0.15)^(1/2)+0.075)/8)
( x-(((0.075^2+0.15)^(1/2)-0.075)/8) )
x-(((0.075^2+0.15)^(1/2)-0.075)/8) = 0 // + ((0.075^2+0.15)^(1/2)-0.075)/8
x = ((0.075^2+0.15)^(1/2)-0.075)/8
x in { -(((0.075^2+0.15)^(1/2)+0.075)/8), ((0.075^2+0.15)^(1/2)-0.075)/8 }
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