d^2-5/3d-2/3=0

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Solution for d^2-5/3d-2/3=0 equation: 


d in (-oo:+oo)

d^2-((5/3)*d)-(2/3) = 0

d^2+(-5/3)*d-2/3 = 0

d^2-5/3*d-2/3 = 0

DELTA = (-5/3)^2-(-2/3*1*4)

DELTA = 49/9

DELTA > 0

d = ((49/9)^(1/2)+5/3)/(1*2) or d = (5/3-(49/9)^(1/2))/(1*2)

d = 2 or d = -1/3

d in { -1/3, 2 }

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