已知:X+Y=-3,XY=2,X²Y+XY²已知:A+B=2,AB=2则½A的三次方B+A²B²+½AB的三次方的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/22 00:19:00
![已知:X+Y=-3,XY=2,X²Y+XY²已知:A+B=2,AB=2则½A的三次方B+A²B²+½AB的三次方的值](/uploads/image/z/3983754-66-4.jpg?t=%E5%B7%B2%E7%9F%A5%EF%BC%9AX%2BY%3D-3%2CXY%3D2%2CX%26%23178%3BY%2BXY%26%23178%3B%E5%B7%B2%E7%9F%A5%EF%BC%9AA%2BB%3D2%2CAB%3D2%E5%88%99%26%23189%3BA%E7%9A%84%E4%B8%89%E6%AC%A1%E6%96%B9B%2BA%26%23178%3BB%26%23178%3B%2B%26%23189%3BAB%E7%9A%84%E4%B8%89%E6%AC%A1%E6%96%B9%E7%9A%84%E5%80%BC)
已知:X+Y=-3,XY=2,X²Y+XY²已知:A+B=2,AB=2则½A的三次方B+A²B²+½AB的三次方的值
已知:X+Y=-3,XY=2,X²Y+XY²
已知:A+B=2,AB=2则½A的三次方B+A²B²+½AB的三次方的值
已知:X+Y=-3,XY=2,X²Y+XY²已知:A+B=2,AB=2则½A的三次方B+A²B²+½AB的三次方的值
X²Y+XY²=(x+y)XY=-6
4