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D( j )
j+8 = 0
3*j = 0
j^2+8*j = 0
j+8 = 0
j+8 = 0
j+8 = 0 // - 8
j = -8
3*j = 0
3*j = 0
3*j = 0 // : 3
j = 0
j^2+8*j = 0
j^2+8*j = 0
j^2+8*j = 0
DELTA = 8^2-(0*1*4)
DELTA = 64
DELTA > 0
j = (64^(1/2)-8)/(1*2) or j = (-64^(1/2)-8)/(1*2)
j = 0 or j = -8
j in (-oo:-8) U (-8:0) U (0:+oo)
2/(j^2+8*j)+(2*j)/(j+8)-(1/(3*j)) = 0
2/(j^2+8*j)+(2*j)/(j+8)+(-1/3)*j^-1 = 0
2/(j^2+8*j)+(2*j)/(j+8)-1/(3*j) = 0
j^2+8*j = 0
j^2+8*j = 0
j*(j+8) = 0
j+8 = 0 // - 8
j = -8
j*(j+8) = 0
2/(j*(j+8))+(2*j)/(j+8)-1/(3*j) = 0
(2*3*j)/(3*j*j*(j+8))+(2*3*j*j*j)/(3*j*j*(j+8))+(-1*j*(j+8))/(3*j*j*(j+8)) = 0
2*3*j*j*j-1*j*(j+8)+2*3*j = 0
6*j^3-j^2+6*j-8*j = 0
6*j^3-j^2-2*j = 0
6*j^3-j^2-2*j = 0
j*(6*j^2-j-2) = 0
6*j^2-j-2 = 0
DELTA = (-1)^2-(-2*4*6)
DELTA = 49
DELTA > 0
j = (49^(1/2)+1)/(2*6) or j = (1-49^(1/2))/(2*6)
j = 2/3 or j = -1/2
j*(j+1/2)*(j-2/3) = 0
(j*(j+1/2)*(j-2/3))/(3*j*j*(j+8)) = 0
(j*(j+1/2)*(j-2/3))/(3*j*j*(j+8)) = 0 // * 3*j*j*(j+8)
j*(j+1/2)*(j-2/3) = 0
( j+1/2 )
j+1/2 = 0 // - 1/2
j = -1/2
( j-2/3 )
j-2/3 = 0 // + 2/3
j = 2/3
( j )
j = 0
j in { 0}
j in { -1/2, 2/3 }
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