已知7x^2+5y^2=12xy.xy≠0,则x/y为
来源:学生作业帮助网 编辑:六六作业网 时间:2025/01/25 08:29:08
已知7x^2+5y^2=12xy.xy≠0,则x/y为已知7x^2+5y^2=12xy.xy≠0,则x/y为已知7x^2+5y^2=12xy.xy≠0,则x/y为(7x-5y)(x-y)=0xy≠0x
已知7x^2+5y^2=12xy.xy≠0,则x/y为
已知7x^2+5y^2=12xy.xy≠0,则x/y为
已知7x^2+5y^2=12xy.xy≠0,则x/y为
(7x-5y)(x-y)=0
xy≠0
x/y=5/7或1
两边同时除以Y方,把X/Y 当成整体,答案是1或5/7
已知7x^2+5y^2=12xy.xy≠0,则x/y为
已知x²-7xy+12y²=0求x²-xy+y²/2xy的值
已知xy^2=-2,求-xy(x^2y^5-xy^3-y)的值.
已知xy^2=-2 求-xy(x^2y^5-xy^3-y)
已知xy^2=-2xy(x^2y^5-xy^3-y)
已知xy^2=-2求xy(2x^3y^7+5x^2y
已知x^2-xy=5,xy-y^2=-3求3(x^2-xy)-xy+y^2
已知X+y=6,xy=7 求x^2y+xy^2=已知X+y=6,xy=7 x^2y+xy^2
已知A=8x^2y-6xy^2-3xy,B=7xy^2-2xy+5x^2y求A-B
已知x-xy=20,xy-y=12,则x-y= ,-2xy+x+y=
已知x-xy=20 xy-y=12,则x-y=( ),x+y-2xy=( ).
已知:x-xy=20,xy-y=12,则x-y=...,-2xy+x+y=...
已知xy/x+y=3,则代数式2x-7xy+2y/-x+xy-y的值是多少?
已知x-xy =21,xy-y=-12,分别求式子x-y与x-2xy +y
已知X-XY-2Y=0求2X+3XY-Y/X-2XY+5Y
已知xy/x+y=3,求代数式2x-5xy+2y/x-3xy+y
已知xy/x+y=2,求代数式3x-5xy+3y/-x+2xy-y的值
已知xy=2(x+y),求(5x-xy+5y)/(3xy-x-y)的值