3x^2-xy /9x^2-6xy+y^2=x/( )=( )/9x^2-y^2
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:2024/04/27 21:12:30
3x^2-xy /9x^2-6xy+y^2=x/( )=( )/9x^2-y^2
数学题:3x^2-xy /9x^2-6xy+y^2=x/( 3x-y)=(3x^2+xy )/9x^2-y^2
9x^2-6xy+y^2=[3x-y]^2
9x^2-6xy+y^2=[3x-y]^2
(x-2xy)*(-xy+2y*y)-(3x*x-2xy)(x-9xy+6y*y)
化简:x-y/x+3y÷x^-y^2/x^2+6xy+9y^2-(xy/x+y)
x*-2xy+3y*=9 4x*-5xy+6y*=30
已知x-xy=8,xy-y=-9,求x+y-2xy的值
(-3x^y+2xy)-( )=4x^+xy
2 21.(2x+3y) -(x+2y) 2 2 2 22.3|x-3|+x -6xy+9y =0 则x y+2xy=?
已知:x/y=-2,求x^2-2xy-3y^2/x^-6xy
已知xy/x+y=6,求3x-2xy+3y/-x+3xy-y的值.
(xy-x^2)乘以(xy)/(x-y)
x^+2xy+y^+4=16 x^-2xy+y^=16 求(3xy+6y^)+|x^-(2xy+2y^-3x^)|的值
由已知x+y=-2,xy=3那么2(x+xy)-[(xy-3y)-x]-(-xy)等于多少?
已知x-y=4xy,则2x+3xy-2yx-2xy-y