513:23+x + 513/23-x = 46513(23-x) + 513(23+x) = 46(529-x^2)11799-513x+11799+513x = 24334-26x^226x^2+1026x-736=0D=b^2-4ac= 1026^2-4*26*(-736) = 1129220x= (-b+-sqrt(D))/2a = (-1026 +- sqrt(1129220))/2*26 = 0.7047.. ; -40.166..
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