
计算:x的平方-4x+4分之x的平方-4乘以x+2分之x-2÷2-x分之x+2
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(x²-4)/(x²-4x+4)乘以(x-2)/(x+2)除以(x+2)/(2-x)
=-(x-2)(x+2)/(x-2)²乘以(x-2)/(x+2)乘以(x-2)/(x+2)
=-(x-2)/(x+2)
有疑问,请追问;若满意,请采纳,谢谢!
=-(x-2)(x+2)/(x-2)²乘以(x-2)/(x+2)乘以(x-2)/(x+2)
=-(x-2)/(x+2)
有疑问,请追问;若满意,请采纳,谢谢!
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