1/3k^2+1/9k=0

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Solution for 1/3k^2+1/9k=0 equation: 


k in (-oo:+oo)

(1/3)*k^2+(1/9)*k = 0

1/3*k^2+1/9*k = 0

DELTA = (1/9)^2-(0*1/3*4)

DELTA = 1/81

DELTA > 0

k = ((1/81)^(1/2)-1/9)/(1/3*2) or k = (-(1/81)^(1/2)-1/9)/(1/3*2)

k = 0 or k = -1/3

k in { -1/3, 0 }

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