1/2b^2-b

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Solution for 1/2b^2-b equation: 


b in (-oo:+oo)

(1/2)*b^2-b = 0

1/2*b^2-b = 0

DELTA = (-1)^2-(0*1/2*4)

DELTA = 1

DELTA > 0

b = (1^(1/2)+1)/(1/2*2) or b = (1-1^(1/2))/(1/2*2)

b = 2 or b = 0

b in { 0, 2 }

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