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D( x )
x^2+30*x+29 = 0
x^2+30*x+29 = 0
x^2+30*x+29 = 0
x^2+30*x+29 = 0
DELTA = 30^2-(1*4*29)
DELTA = 900-116
DELTA = 784
DELTA > 0
x = ((900-116)^(1/2)-30)/(1*2) or x = (-(900-116)^(1/2)-30)/(1*2)
x = (28-30)/2 or x = (-30-28)/2
x in (-oo:(-30-28)/2) U ((-30-28)/2:(28-30)/2) U ((28-30)/2:+oo)
(8*x+11)/(x^2+30*x+29)-((7*x+10)/(x^2+30*x+29)) = 0
(8*x+11)/(x^2+30*x+29)+(-1*(7*x+10))/(x^2+30*x+29) = 0
x^2+30*x+29 = 0
x^2+30*x+29 = 0
x^2+30*x+29 = 0
DELTA = 30^2-(1*4*29)
DELTA = 900-116
DELTA = 784
DELTA > 0
x = ((900-116)^(1/2)-30)/(1*2) or x = (-(900-116)^(1/2)-30)/(1*2)
x = (28-30)/2 or x = (-30-28)/2
(x-((-30-28)/2))*(x-((28-30)/2)) = 0
(8*x+11)/((x-((-30-28)/2))*(x-((28-30)/2)))+(-1*(7*x+10))/((x-((-30-28)/2))*(x-((28-30)/2))) = 0
8*x-1*(7*x+10)+11 = 0
(8-7)*x-10+11 = 0
((8-7)*x-10+11)/((x-((-30-28)/2))*(x-((28-30)/2))) = 0
((8-7)*x-10+11)/((x-((-30-28)/2))*(x-((28-30)/2))) = 0 // * (x-((-30-28)/2))*(x-((28-30)/2))
(8-7)*x-10+11 = 0
(8-7)*x-10+11 = 0 // - 11-10
(8-7)*x = -(11-10) // : 8-7
x = (-(11-10))/(8-7)
x = (10-11)/(8-7)
x in { (10-11)/(8-7)}
x belongs to the empty set
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