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D( y )
y-6 = 0
y-6 = 0
y-6 = 0
y-6 = 0 // + 6
y = 6
y in (-oo:6) U (6:+oo)
(8*y)/(y-6)+(2/3)*y = -11/3 // + -11/3
(8*y)/(y-6)+(2/3)*y-(-11/3) = 0
(8*y)/(y-6)+(2/3)*y+11/3 = 0
(8*y)/(y-6)+(2*y)/3+11/3 = 0
(3*8*y)/(3*(y-6))+(2*y*(y-6))/(3*(y-6))+(11*(y-6))/(3*(y-6)) = 0
2*y*(y-6)+11*(y-6)+3*8*y = 0
2*y^2+12*y+11*y-66 = 0
2*y^2+23*y-66 = 0
2*y^2+23*y-66 = 0
2*y^2+23*y-66 = 0
DELTA = 23^2-(-66*2*4)
DELTA = 1057
DELTA > 0
y = (1057^(1/2)-23)/(2*2) or y = (-1057^(1/2)-23)/(2*2)
y = (1057^(1/2)-23)/4 or y = (-(1057^(1/2)+23))/4
(y+(1057^(1/2)+23)/4)*(y-((1057^(1/2)-23)/4)) = 0
((y+(1057^(1/2)+23)/4)*(y-((1057^(1/2)-23)/4)))/(3*(y-6)) = 0
((y+(1057^(1/2)+23)/4)*(y-((1057^(1/2)-23)/4)))/(3*(y-6)) = 0 // * 3*(y-6)
(y+(1057^(1/2)+23)/4)*(y-((1057^(1/2)-23)/4)) = 0
( y+(1057^(1/2)+23)/4 )
y+(1057^(1/2)+23)/4 = 0 // - (1057^(1/2)+23)/4
y = -((1057^(1/2)+23)/4)
( y-((1057^(1/2)-23)/4) )
y-((1057^(1/2)-23)/4) = 0 // + (1057^(1/2)-23)/4
y = (1057^(1/2)-23)/4
y in { -((1057^(1/2)+23)/4), (1057^(1/2)-23)/4 }
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