1/9x^2-x-18=0

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Solution for 1/9x^2-x-18=0 equation: 


x in (-oo:+oo)

(1/9)*x^2-x-18 = 0

1/9*x^2-x-18 = 0

DELTA = (-1)^2-(-18*1/9*4)

DELTA = 9

DELTA > 0

x = (9^(1/2)+1)/(1/9*2) or x = (1-9^(1/2))/(1/9*2)

x = 18 or x = -9

x in { -9, 18 }

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