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D( x )
x^2+12*x+32 = 0
x^2+2*x = 0
x^2+13*x+40 = 0
x^2+12*x+32 = 0
x^2+12*x+32 = 0
x^2+12*x+32 = 0
DELTA = 12^2-(1*4*32)
DELTA = 16
DELTA > 0
x = (16^(1/2)-12)/(1*2) or x = (-16^(1/2)-12)/(1*2)
x = -4 or x = -8
x^2+2*x = 0
x^2+2*x = 0
x^2+2*x = 0
DELTA = 2^2-(0*1*4)
DELTA = 4
DELTA > 0
x = (4^(1/2)-2)/(1*2) or x = (-4^(1/2)-2)/(1*2)
x = 0 or x = -2
x^2+13*x+40 = 0
x^2+13*x+40 = 0
x^2+13*x+40 = 0
DELTA = 13^2-(1*4*40)
DELTA = 9
DELTA > 0
x = (9^(1/2)-13)/(1*2) or x = (-9^(1/2)-13)/(1*2)
x = -5 or x = -8
x in (-oo:-8) U (-8:-5) U (-5:-4) U (-4:-2) U (-2:0) U (0:+oo)
(((x^2+7*x+10)/(x^2+13*x+40))/(x^2+2*x))/(x^2+12*x+32) = 0
(x^2+7*x+10)/((x^2+13*x+40)*(x^2+2*x)*(x^2+12*x+32)) = 0
x^2+7*x+10 = 0
x^2+7*x+10 = 0
DELTA = 7^2-(1*4*10)
DELTA = 9
DELTA > 0
x = (9^(1/2)-7)/(1*2) or x = (-9^(1/2)-7)/(1*2)
x = -2 or x = -5
(x+5)*(x+2) = 0
x^2+13*x+40 = 0
x^2+13*x+40 = 0
DELTA = 13^2-(1*4*40)
DELTA = 9
DELTA > 0
x = (9^(1/2)-13)/(1*2) or x = (-9^(1/2)-13)/(1*2)
x = -5 or x = -8
(x+8)*(x+5) = 0
x^2+2*x = 0
x*(x+2) = 0
x+2 = 0 // - 2
x = -2
x*(x+2) = 0
x^2+12*x+32 = 0
x^2+12*x+32 = 0
DELTA = 12^2-(1*4*32)
DELTA = 16
DELTA > 0
x = (16^(1/2)-12)/(1*2) or x = (-16^(1/2)-12)/(1*2)
x = -4 or x = -8
(x+8)*(x+4) = 0
((x+5)*(x+2))/(x*(x+8)^2*(x+5)*(x+2)*(x+4)) = 0
( x+2 )
x+2 = 0 // - 2
x = -2
( x+5 )
x+5 = 0 // - 5
x = -5
x in { -2}
x in { -5}
x belongs to the empty set
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