z^2/6-7z/2-12=0

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Solution for z^2/6-7z/2-12=0 equation: 


z in (-oo:+oo)

(z^2)/6-((7*z)/2)-12 = 0

(z^2)/6+(-7/2)*z-12 = 0

1/6*z^2-7/2*z-12 = 0

DELTA = (-7/2)^2-(-12*1/6*4)

DELTA = 81/4

DELTA > 0

z = ((81/4)^(1/2)+7/2)/(1/6*2) or z = (7/2-(81/4)^(1/2))/(1/6*2)

z = 24 or z = -3

z in { -3, 24 }

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