1/2(x^2-x-306)=0

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Solution for 1/2(x^2-x-306)=0 equation: 


x in (-oo:+oo)

(1/2)*(x^2-x-306) = 0

1/2*(x^2-x-306) = 0

x^2-x-306 = 0

x^2-x-306 = 0

DELTA = (-1)^2-(-306*1*4)

DELTA = 1225

DELTA > 0

x = (1225^(1/2)+1)/(1*2) or x = (1-1225^(1/2))/(1*2)

x = 18 or x = -17

(x+17)*(x-18) = 0

1/2*(x+17)*(x-18) = 0

( x+17 )

x+17 = 0 // - 17

x = -17

( x-18 )

x-18 = 0 // + 18

x = 18

x in { -17, 18 }

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