化简:根号x²-4x+4分之2-x+根号x²+4x+4分之x+2(x>2)
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/08 02:37:10
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化简:根号x²-4x+4分之2-x+根号x²+4x+4分之x+2(x>2)
化简:根号x²-4x+4分之2-x+根号x²+4x+4分之x+2(x>2)
化简:根号x²-4x+4分之2-x+根号x²+4x+4分之x+2(x>2)
x>2
x-2>0
x+2>0
原式=(2-x)/√(x-2)²+(x+2)/√(x+2)²
=(2-x)/|x-2|+(x+2)/|x+2|
=-1+1
=0