x-y=4xy,试求2x+3xy-2y/x-2xy-y
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/23 19:52:35
x-y=4xy,试求2x+3xy-2y/x-2xy-yx-y=4xy,试求2x+3xy-2y/x-2xy-yx-y=4xy,试求2x+3xy-2y/x-2xy-y(2x+3xy-2y)/(x-2xy-
x-y=4xy,试求2x+3xy-2y/x-2xy-y
x-y=4xy,试求2x+3xy-2y/x-2xy-y
x-y=4xy,试求2x+3xy-2y/x-2xy-y
(2x+3xy-2y)/(x-2xy-y)
=(2(x-y)+3xy)/((x-y)-2xy)
=(8xy+3xy)/(4xy-2xy)
=11xy/2xy
=11/2
2x+3xy-2y/x-2xy-y
==> [ 2(x-y)+3xy ] / [ (x-y)-2xy]
==> x-y=4xy代入
==> 11xy/2xy
==> 11/2
(2x+3xy-2y)/(x-y-2xy)
=11xy/2xy
=11/2
x-y=4xy,试求2x+3xy-2y/x-2xy-y
x-y=4xy,试求2x+3xy-2y/x-2xy-y
当x-y=2xy时,求4x-3xy-4y/xy
已知x-y=4xy,求2x+3xy-2y/x-2xy-y的值
已知x-y=4xy,求x-2xy-y分之2x+3xy-2y的值!
诺x+y=6,xy=4 求(5x-4y-3xy)-(8x-y+2xy)
已知x-y=3xy,求5x+2xy-5y/x-4xy-y的值
若x-y=4,xy=1,求(-2xy+2x+3y)-(3xy+2y-2x)-(x+4y+xy)的值
x-y=1,xy=2.求:(-2xy+2x+3y)-(3xy+2y-2x)-(x+4y+xy)的值
.已知:x-y=1,xy=-2.求:(-2xy+2 x+3y)-(3xy+2y-2x)-(x+4y+xy)的值
x^+2xy+y^+4=16 x^-2xy+y^=16 求(3xy+6y^)+|x^-(2xy+2y^-3x^)|的值
求方程组的解,方程组xy/(2x+y)-xy/(2x-y)=3,xy/(2x-y)+xy/(2x+y)=4
求(3x^+y^-5xy)-【2x^-(-4xy-y^+7x^)】=?
求(3x^+y^-5xy)-【2x^-(-4xy-y^+7x^)】=?
已知1/x-1/y=2,求3x+7xy-3y/2x-3xy-2y答案是1/x-1/y=2(y-x)/xy=2 得:x-y=-2xy(3x+7xy-3y)/(2x-3xy-2y)=[3(x-y)+7xy]/[2(x-y)-3xy]=(-6xy+7xy)/(-4xy-3xy)=xy/(-7xy)=-1/7 谁能帮我解释一下=[3(x-y)+7xy]/[2(x-y)-3xy]=(-6xy+7xy)/(-4xy-3xy) 是怎
1-2/x+y=xy,4y+6x=xy.求xy的解?
已知x y=1,xy=-3,求2xy-4x 4(y-2(xy-x))
3X^2+XY+Y=15 求XY.