作业帮x²y-2xy+y/y-x²y化简
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/08 21:28:09
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x²y-2xy+y/y-x²y化简
x²y-2xy+y/y-x²y化简
x²y-2xy+y/y-x²y化简
同时除以y
=(x²-2x+1)/(1-x²)
=(x-1)²/-(x+1)(x-1)
=(x-1)/-(x+1)
=(1-x)/(x+1)
x²y-2xy+y/y-x²y
=y(x²-2x+1)/y(1-x²)
=(x-1)²/(1+x)(1-x)
=(1-x)²/(1+x)(1-x)
=1-x / 1+x
x²-2xy+y²-9
因式分解 x²-XY-2y²-X-Y
x²+xy-2y²-x+7y-6
因式分解2x(x-y)^4 - x²(x-y)² + xy(y-x)²RT
若x²+xy-2y²=0,则x²+3xy+y²/x²+y²
x²+xy-2y²=0则x²+3xy+y²/x²+y²
x²-4y²/x²+2xy+y²÷x+2y/2x²+2xy
计算：4xy²-3x²y-{3x²y-[2xy²-4x²y+2(x²y-2xy²)]急
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?
计算x²-x/x²×x/1-x和x²-4y²/x²+2xy+y²÷x+2y/x²+xy
x²-y²+6x+9分之x²+y²-9-2xy
（xy-x²）÷[（x²-2xy+y²）÷xy]*[(x-y)÷x²]
x/y=2,求x²-3xy+y²/2x²-3xy+5y²
已知x/y=3,求x²+2xy-3y²/x²-2xy+y²
x/y=2,求分式x²-xy+3y²/x²+xy+6y²
已知x/y=3,求x²+2xy-3y²/x²-xy+y²的值
x²y-2xy+y/y-x²y化简
因式分解 x²-2xy+y²-z²