1/3z^2+3z=0

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


z in (-oo:+oo)

(1/3)*z^2+3*z = 0

1/3*z^2+3*z = 0

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

DELTA = 9

DELTA > 0

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

z = 0 or z = -9

z in { -9, 0 }

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