x+y-x-y分子x平方可化简为
1个回答
x+y - x²/(x-y)
=[(x+y)(x-y)-x²]/(x-y)
=(x²-y²-x²)/(x-y)
= -y²/(x-y)
相关问题
分式x²-y²/xy-xy-y²/xy-x²可化简为()
化简(x-y)³(y-x)²为
x+y+(根号下x方+y方)=2 化简xy=2(x+y)-2?
化简:{【x(2次方)+xy/xy】-【x-y/y】}乘x(2次方)
化简x/y(x+y)-y/x(x+y)
化简:(-18x的平方y的立方)/(9x的四次方y) 化简:(x平方-x-2)/(x+1)
化简(x+y)²-(x-y)²
-x方+2xy-y方怎么化简
化简y(x+y)+(x+y)(x-y)-x^2
-(x+y)的2次方化简