∵13x²-6xy+y²-4x+1=0∴(9x²-6xy+y²)+(4x²-4x+1)=0∴9x²-6xy+y²=0 4x²-4x+1=0∴3x-y=0 2x-1=0∴x=0.5 y=1.5∴(x+y)^2013*x^2011=2^2013*0.5^2011