(3xy^2)^3乘[xy(2x-y)-2x(xy-y^2)].其中x=2 y=1/2
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 10:03:12
(3xy^2)^3乘[xy(2x-y)-2x(xy-y^2)].其中x=2y=1/2(3xy^2)^3乘[xy(2x-y)-2x(xy-y^2)].其中x=2y=1/2(3xy^2)^3乘[xy(2x
(3xy^2)^3乘[xy(2x-y)-2x(xy-y^2)].其中x=2 y=1/2
(3xy^2)^3乘[xy(2x-y)-2x(xy-y^2)].其中x=2 y=1/2
(3xy^2)^3乘[xy(2x-y)-2x(xy-y^2)].其中x=2 y=1/2
x=2 y=1/2
所以xy=1
所以(3xy²)³*[xy(2x-y)-2x(xy-y²)]
=(3y)³*[(2x-y)-2x(1-y²)]
=27y³*(2x-y-2x+2xy²)
=27y³*(-y+2y)
=27y⁴
=27*(1/2)⁴
=27/16
如果不懂,祝学习愉快!
2x²y-3(2xy-xy)-xy
4x^2y乘(-xy^2)^3
x^y乘(2xy-3xy^2)=___________________=________________
(二分之一x的平方-2 xy+y的平方)乘3xy急!!!
[6xy^2乘(-2xy)^2-24x^5y^6除(-2xy)^2]除(-3xy^2)^2,其中x=2,y=2003
已知xy满足/ x-2/+(y+1)²=0试求代数式试求代数式-2xy乘5xy²+1/2x²y²乘2y-3x乘2y+6xy的值
(-3xy)^2乘(-xy)^3答案
xy-2{xy-[3x^2y-(4xy^2+0.5xy)]+4x^2y}+6xy^2
(X-3xy+4xy-y)-[-2x-2(xy-3/2xy)-y]+6xy的过程
(-3分之1xy)的2次方乘(xy(2x-y)-2x(xy-y的2次方)),其中x=-2分之3,y=2
(3xy^2)^3乘[xy(2x-y)-2x(xy-y^2)].其中x=2 y=1/2
3xy(x^2y-xy^2+xy)-xy^2(2x^2-6xy+2x)过程
计算:3xy(x²y-xy²+xy)-xy²(2x-xy+2x)
多项式乘多项式(x-3)(y+2)=xy (x+1)(y-1)=xy-6
x^2-xy-6y^2+3xy+y+2
X²+2xy+y²/xy乘x²-2xy+y²/xy+y²=
已知x^2加y^2=7,xy=-2,求5乘x的平方-3xy-4乘y的平方-11xy-7乘x的平方+2乘y的平方.
计算:3xy[2xy-x(y-2)+x]