(xyz²-4yx-1)+(-3xy+z²yx-3)-(2xyz²+xy)的值与哪个的大小无关或有关?
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(xyz²-4yx-1)+(-3xy+z²yx-3)-(2xyz²+xy)的值与哪个的大小无关或有关?
(xyz²-4yx-1)+(-3xy+z²yx-3)-(2xyz²+xy)的值与哪个的大小无关或有关?
(xyz²-4yx-1)+(-3xy+z²yx-3)-(2xyz²+xy)的值与哪个的大小无关或有关?
(xyz²-4yx-1)+(-3xy+z²yx-3)-(2xyz²+xy)
=xyz²-4yx-1-3xy+z²yx-3-2xyz²-xy
= -8xy-4
则跟z的值无关
化简后为:-8xy-4
与x,y有关,与z无关。