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2863.789*x^2+27627.862*x-81502.192 = 0
(2863.789*x^2+27627.862*x-81502.192)/((34.81*x-x^2)^2) = 0
199.8;155.98
(2863.789*x^2+27627.862*x-81502.192)/((34.81*x-x^2)^2) = 0
x^3-(2*x^2)-(4*x)+1
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