x>3,化简根号x²-6x+9+根号x²+2x+1
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 13:54:03
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x>3,化简根号x²-6x+9+根号x²+2x+1
x>3,化简根号x²-6x+9+根号x²+2x+1
x>3,化简根号x²-6x+9+根号x²+2x+1
根号x²-6x+9+根号x²+2x+1
=根号(x-3)²+根号(x+1)²
=x-3+x+1
=2x-2