1/6(x^2-5x-66)

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Solution for 1/6(x^2-5x-66) equation: 


x in (-oo:+oo)

(1/6)*(x^2-(5*x)-66) = 0

(1/6)*(x^2-5*x-66) = 0

1/6*(x^2-5*x-66) = 0

x^2-5*x-66 = 0

x^2-5*x-66 = 0

DELTA = (-5)^2-(-66*1*4)

DELTA = 289

DELTA > 0

x = (289^(1/2)+5)/(1*2) or x = (5-289^(1/2))/(1*2)

x = 11 or x = -6

(x+6)*(x-11) = 0

1/6*(x+6)*(x-11) = 0

( x+6 )

x+6 = 0 // - 6

x = -6

( x-11 )

x-11 = 0 // + 11

x = 11

x in { -6, 11 }

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