1/2x^2-7x=16

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Solution for 1/2x^2-7x=16 equation: 


x in (-oo:+oo)

(1/2)*x^2-(7*x) = 16 // - 16

(1/2)*x^2-(7*x)-16 = 0

(1/2)*x^2-7*x-16 = 0

1/2*x^2-7*x-16 = 0

DELTA = (-7)^2-(-16*1/2*4)

DELTA = 81

DELTA > 0

x = (81^(1/2)+7)/(1/2*2) or x = (7-81^(1/2))/(1/2*2)

x = 16 or x = -2

x in { -2, 16 }

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