x-y=-3,xy=2,则2x²y²-x+y的值
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 02:28:40
x-y=-3,xy=2,则2x²y²-x+y的值x-y=-3,xy=2,则2x²y²-x+y的值x-y=-3,xy=2,则2x²y²-x+y
x-y=-3,xy=2,则2x²y²-x+y的值
x-y=-3,xy=2,则2x²y²-x+y的值
x-y=-3,xy=2,则2x²y²-x+y的值
冰菊的花瓣
2x²y²-x+y
=2(xy)²-(x-y)
=2×(2)²-(-3)
=8+3
=11
若x²+xy-2y²=0,则x²+3xy+y²/x²+y²
x²+xy-2y²=0则x²+3xy+y²/x²+y²
x²+xy-2y²=0,则x²+3xy+y²/x²+y²=?如题目.详细计算过程
数于式的提如果x²+xy-2y²=0,则(x²+3xy+y²)/(x²+y²)等于?
x/y=2,求x²-3xy+y²/2x²-3xy+5y²
已知x/y=3,求x²+2xy-3y²/x²-2xy+y²
已知x/y=3,求x²+2xy-3y²/x²-xy+y²的值
x/y=2,求分式x²-xy+3y²/x²+xy+6y²
已知X²+XY=3,XY+Y²=2,则代数式X²+2xy的值为
已知:x²+xy=3,xy+y²=-2 求:2x²-xy-3y²
已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² 已知x² -XY = 2,Y² -XY= 5,求x² - 4x Y+ Y² = 2x² + xY -3Y² = x² + xY- 2Y² =求x² - 4x Y+ Y² =
6x²-xy-15y²=0 求x²-2xy+4y²/2x²-3xy-3y²告诉下
6x²-xy-15y²=0 求2x²-3xy-3y²分之x²-2xy+4y²
(5x²y-2xy²-3xy)-(2xy+5x²y-2xy²),x=-1/5,y=-1/3
3x²y-[2xy²-2(xy-1.5x²y)+xy]+3xy² 其中x=3 y=-三分之一(需要解题过程)
已知x³-xy=8,xy-y²=-3求x²-y²,x²-2xy+y²的值
已知x/y=2/7,则x²-3xy+2y²/2x²-3xy+7y²的值是
已知x/y=1/2,则x²-3xy+2y²/2x²-3xy+7y²