1/3x^2-2x-7

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Solution for 1/3x^2-2x-7 equation: 


x in (-oo:+oo)

(1/3)*x^2-(2*x)-7 = 0

(1/3)*x^2-2*x-7 = 0

1/3*x^2-2*x-7 = 0

DELTA = (-2)^2-(-7*1/3*4)

DELTA = 40/3

DELTA > 0

x = ((40/3)^(1/2)+2)/(1/3*2) or x = (2-(40/3)^(1/2))/(1/3*2)

x = 3/2*((40/3)^(1/2)+2) or x = 3/2*(2-(40/3)^(1/2))

x in { 3/2*(2-(40/3)^(1/2)), 3/2*((40/3)^(1/2)+2) }

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