已知x=6.61,y=-3.39,球(x-y)(x²+3xy+y²)-5xy(x-y)的值
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/04 02:45:16
已知x=6.61,y=-3.39,球(x-y)(x²+3xy+y²)-5xy(x-y)的值已知x=6.61,y=-3.39,球(x-y)(x²+3xy+y²)-
已知x=6.61,y=-3.39,球(x-y)(x²+3xy+y²)-5xy(x-y)的值
已知x=6.61,y=-3.39,球(x-y)(x²+3xy+y²)-5xy(x-y)的值
已知x=6.61,y=-3.39,球(x-y)(x²+3xy+y²)-5xy(x-y)的值
(x-y)(x²+3xy+y²)-5xy(x-y)
=10(x²+3xy+y²)-5xy*10
=10(x^2-2xy+y^2)
=10(x-y)^2
=1000
是(x-y)的三次方,也就是10的三次方,1000
已知x=6.61,y=-3.39,球(x-y)(x²+3xy+y²)-5xy(x-y)的值
已知:3x-5y=0,求x/y,x-y/y,x-y/x
已知X+X+X+Y+Y=54,X+X+Y+Y+Y=56,那么X=( ),Y=( )
X-(X*0.17)=Y x=多少?Y已知.
已知x,y满足{x>=1,x+y
已知x,y满足{x>=1,x+y
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
已知函数Y=-x+1,(x
已知一函数y=x(x
已知不等式组{y=-x,x
已知M={(x,y)||x|
已知曲线y=x
已知:4x = 5y,求(x+y) :y
已知|x|+x+y=10 |y|+x-y=12 求 x+y=?
已知|x|=2,|y|=3,|x+y|=-(x+y)求x-y
已知|x|+x+y=10,|y|+x-y=12,求x+y的值
已知|x|+x+y=10,x+|y|-y=12,求x、y的值
已知/x/+x+y=10,/y/+x-y=12.求x+y的值