化简x+y\x²-y² - 2x-y\4x(x-y)+y²

来源：学生作业帮助网编辑：作业帮时间：2024/04/20 01:09:47

$化简x+y\x²-y² - 2x-y\4x(x-y)+y²$

化简x+y\x²-y² - 2x-y\4x(x-y)+y²
化简x+y\x²-y² - 2x-y\4x(x-y)+y²

化简x+y\x²-y² - 2x-y\4x(x-y)+y²
原式=(x+y)/(x+y)(x-y)-(2x-y)/(4x²-4xy+y²)
=1/(x-y)-(2x-y)/(2x-y)²
=1/(x-y)-1/(2x-y)
=(2x-y-x+y)/(x-y)(2x-y)
=x/(2x²-3xy+y²)