x\y=-2\3,求(x-xy) \ (2xy+y)我要过程
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x\y=-2\3,求(x-xy) \ (2xy+y)我要过程
x\y=-2\3,求(x-xy) \ (2xy+y)
我要过程
x\y=-2\3,求(x-xy) \ (2xy+y)我要过程
kantupian
x\y=-2\3 另x=-2,y=3 (x-xy) \ (2xy+y) =(4+6)/(-12+9) = -10/3
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