x^3＞x^2-x+1理由：x³－(x²-x+1)=x³－x²+x-1=x²(x-1)+(x-1)=(x-1)(x²+1)∵x>1,∴x-1＞0,x²+1＞0∴(x-1)(x²+1)＞0即x³－(x²-x+1)＞0∴x³＞x²-x+1...