化简题(x+y+z)(x-y-z)拜托各位大神
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化简题(x+y+z)(x-y-z)拜托各位大神化简题(x+y+z)(x-y-z)拜托各位大神化简题(x+y+z)(x-y-z)拜托各位大神(x+y+z)(x-y-z)={x+(y+z)}{x-(y+z
化简题(x+y+z)(x-y-z)拜托各位大神
化简题(x+y+z)(x-y-z)拜托各位大神
化简题(x+y+z)(x-y-z)拜托各位大神
(x+y+z)(x-y-z)={x+(y+z)}{x-(y+z)} 根据(A+B)(A-B)=A^ -B^ 则 (x+y+z)(x-y-z)={x+(y+z)}{x-(y+z)}=X^-(y+z)^ 如果还要化简,直接展开来就可以了
麻烦采纳,谢谢!
化简题(x+y+z)(x-y-z)拜托各位大神
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