4x-11/2(x*x)-11x+15

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Solution for 4x-11/2(x*x)-11x+15 equation: 


x in (-oo:+oo)

4*x-((11/2)*x*x)-(11*x)+15 = 0

(-11/2)*x^2+4*x-11*x+15 = 0

15-11/2*x^2-7*x = 0

DELTA = (-7)^2-(-11/2*4*15)

DELTA = 379

DELTA > 0

x = (379^(1/2)+7)/(-11/2*2) or x = (7-379^(1/2))/(-11/2*2)

x = (379^(1/2)+7)/(-11) or x = (7-379^(1/2))/(-11)

x in { (379^(1/2)+7)/(-11), (7-379^(1/2))/(-11) }

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