решите уравнение (x+9)^2+(x-11)^2=2x^2

x^2 + 18x + 81 + (x^2 - 22x + 121) = 2x^22x^2 - 4x + 202 = 2x^22x^2 - 2x^2 - 4x + 202 = 0 - 4x + 202 = 0- 4x = - 202x = 50,5 

x^2+2*x*9+9^2+x^2-2*x*11+11^2=2x^2x^2+18x+81+x^2-22x+121-2x^2=0-4x=-202x=50,5