(x+y)²-2x-2y+1 因式分解

计算x²-x/x²×x/1-x和x²-4y²/x²+2xy+y²÷x+2y/x²+xy x²-y²=1｛(x-y)²-2(x-y-2)=7 因式分解：x²-y²+2y-1要有具体步骤 [(x-y)²+(x+y)(x-y)]除以2x 因式分解2x(x-y)^4 - x²(x-y)² + xy(y-x)²RT 1-x²+2xy-y²x²-y²+x-y麻烦用因式分解解 （x+y）²-2(x²-y²)+（y-x）² 分解公因式 （x+y）²-2（x²-y²）+（x-y）² 在线求助完全平方公式因式分解(1)-a²-1+2a(2)2x²y-x²-xy²(3)4x²-20x+25(4)(x²+1)²-4x²(5)(2x-y)²-2(2x-y)+1(6)(x+y)²-2(x²-y²)+(x-y)² x²-4y² x+2y---------- ÷ --------分数线x²+2xy+y² x²+xyx²-4y² x+2y----------÷--------分数线x²+2xy+y² x²+xy(x+2y)(x-2y)x(x+y)=----------------(x+y)(x+y)(x+2y)(x-y)x=------(x+y)这样对了吗? x²+|x+2y|+2x=-1 化简【{3x²+2y}{-2y+3x²}-{x²-2y}²+8y²】÷{-2x}²的值 2x-y=2,求[(x²+y²)-(x-y)²+2y(x-y)]÷4y 若x²+xy-2y²=0,则x²+3xy+y²/x²+y² x²+xy-2y²=0则x²+3xy+y²/x²+y² (x-2y)²+2x-4y+1 因式分解 (x+y)²-2x-2y+1 因式分解 1、x²+4y²+_______=（x-2y）² 因式分解：（x-2y)²-（2x+y）²