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D( x )
(6-x)^2 = 0
(6-x)^2 = 0
(6-x)^2 = 0
6-x = 0 // - 6
-x = -6 // * -1
x = 6
x in (-oo:6) U (6:+oo)
0.33 = x/((6-x)^2) // - x/((6-x)^2)
0.33-(x/((6-x)^2)) = 0
(-1*x)/((6-x)^2)+0.33 = 0
(-1*x)/((6-x)^2)+(0.33*(6-x)^2)/((6-x)^2) = 0
0.33*(6-x)^2-1*x = 0
0.33*x^2-4.96*x+11.88 = 0
0.33*x^2-4.96*x+11.88 = 0
0.33*x^2-4.96*x+11.88 = 0
DELTA = (-4.96)^2-(0.33*4*11.88)
DELTA = 4.96^2-15.6816
DELTA = 8.92
DELTA > 0
x = ((4.96^2-15.6816)^(1/2)+4.96)/(0.33*2) or x = (4.96-(4.96^2-15.6816)^(1/2))/(0.33*2)
x = 1.51515152*((4.96^2-15.6816)^(1/2)+4.96) or x = 1.51515152*(4.96-(4.96^2-15.6816)^(1/2))
(x-1.51515152*(4.96-(4.96^2-15.6816)^(1/2)))*(x-1.51515152*((4.96^2-15.6816)^(1/2)+4.96)) = 0
((x-1.51515152*(4.96-(4.96^2-15.6816)^(1/2)))*(x-1.51515152*((4.96^2-15.6816)^(1/2)+4.96)))/((6-x)^2) = 0
((x-1.51515152*(4.96-(4.96^2-15.6816)^(1/2)))*(x-1.51515152*((4.96^2-15.6816)^(1/2)+4.96)))/((6-x)^2) = 0 // * (6-x)^2
(x-1.51515152*(4.96-(4.96^2-15.6816)^(1/2)))*(x-1.51515152*((4.96^2-15.6816)^(1/2)+4.96)) = 0
( x-1.51515152*((4.96^2-15.6816)^(1/2)+4.96) )
x-1.51515152*((4.96^2-15.6816)^(1/2)+4.96) = 0 // + -1.51515152*((4.96^2-15.6816)^(1/2)+4.96)
x = -(-1.51515152*((4.96^2-15.6816)^(1/2)+4.96))
x = 1.51515152*((4.96^2-15.6816)^(1/2)+4.96)
( x-1.51515152*(4.96-(4.96^2-15.6816)^(1/2)) )
x-1.51515152*(4.96-(4.96^2-15.6816)^(1/2)) = 0 // + -1.51515152*(4.96-(4.96^2-15.6816)^(1/2))
x = -(-1.51515152*(4.96-(4.96^2-15.6816)^(1/2)))
x = 1.51515152*(4.96-(4.96^2-15.6816)^(1/2))
x in { 1.51515152*((4.96^2-15.6816)^(1/2)+4.96), 1.51515152*(4.96-(4.96^2-15.6816)^(1/2)) }
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