已知x y=6,xy=-3,则3x-2xy 3y的值等于?如题补充:是已知x+ y=6,xy=-3,则3x-2xy +3y的值等于?
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已知xy=6,xy=-3,则3x-2xy3y的值等于?如题补充:是已知x+y=6,xy=-3,则3x-2xy+3y的值等于?已知xy=6,xy=-3,则3x-2xy3y的值等于?如题补充:是已知x+y
已知x y=6,xy=-3,则3x-2xy 3y的值等于?如题补充:是已知x+ y=6,xy=-3,则3x-2xy +3y的值等于?
已知x y=6,xy=-3,则3x-2xy 3y的值等于?
如题
补充:是已知x+ y=6,xy=-3,则3x-2xy +3y的值等于?
已知x y=6,xy=-3,则3x-2xy 3y的值等于?如题补充:是已知x+ y=6,xy=-3,则3x-2xy +3y的值等于?
题目有问题
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