分式乘除法:已知x-3y=0,求2x+y/x²-2xy+y²×(x-y)的值
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/17 11:17:36
分式乘除法:已知x-3y=0,求2x+y/x²-2xy+y²×(x-y)的值
![分式乘除法:已知x-3y=0,求2x+y/x²-2xy+y²×(x-y)的值](/uploads/image/z/3075049-1-9.jpg?t=%E5%88%86%E5%BC%8F%E4%B9%98%E9%99%A4%E6%B3%95%EF%BC%9A%E5%B7%B2%E7%9F%A5x-3y%3D0%2C%E6%B1%822x%2By%2Fx%26sup2%3B-2xy%2By%26sup2%3B%C3%97%28x-y%29%E7%9A%84%E5%80%BC)
x-3y=0
x=3y
2x+y/x^2-2xy+y^2×(x-y)
=(2x+y)/(x-y)^2*(x-y)
=(2x+y)/(x-y)
=(6y+y)/(3y-y)
=7y/2y
=7/2
x=3y
2x+y/x^2-2xy+y^2×(x-y)
=(2x+y)/(x-y)^2*(x-y)
=(2x+y)/(x-y)
=(6y+y)/(3y-y)
=7y/2y
=7/2
分式乘除法:已知x-3y=0,求2x+y/x²-2xy+y²×(x-y)的值
已知x/y=3,求x²+2xy-3y²/x²-xy+y²的值
分式的乘除法计算::x²-4y²/x²+2xy+y²÷x+2y/x²+
已知X²-5XY+6Y²=0,求(X²+3XY)\2Y²的值
x/y=2,求分式x²-xy+3y²/x²+xy+6y²
已知x/y=3,求x²+2xy-3y²/x²-xy+y³的值
已知非零实数x,y满足x²-4xy+4y²=0,求分式2x-y除以2x+y的值
x²+y²+4x-8y+20=0,求分式x²-y²/xy的值
已知3x²+xy-2y²=0.求代数式y分之x-x分之y-xy分之x²+y²的值
若x/y=2,求分式(x²-xy+3y²)/(x²+xy+6y²)的值
已知3x²+xy-2y²=0(x≠0,y≠0),求x/y-y/x-x²+y²/x
已知3x+2y=0,求代数式(x²+xy-y²)÷(x²-xy+y²)的值.