9+2x/9-x2=6-x

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Solution for 9+2x/9-x2=6-x equation: 


x in (-oo:+oo)

(2*x)/9-x^2+9 = 6-x // - 6-x

(2*x)/9-x^2+x-6+9 = 0

11/9*x-x^2+3 = 0

DELTA = (11/9)^2-(-1*3*4)

DELTA = 1093/81

DELTA > 0

x = ((1093/81)^(1/2)-11/9)/(-1*2) or x = (-(1093/81)^(1/2)-11/9)/(-1*2)

x = ((1093/81)^(1/2)-11/9)/(-2) or x = ((1093/81)^(1/2)+11/9)/2

x in { ((1093/81)^(1/2)-11/9)/(-2), ((1093/81)^(1/2)+11/9)/2 }

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