化简√(a+2)²-|2-b|+|a+b|-|a+1| -2
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/21 11:33:53
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化简√(a+2)²-|2-b|+|a+b|-|a+1| -2 化简√(a+2)²-|2-b|+|a+b|-|a+1| -2
化简√(a+2)²-|2-b|+|a+b|-|a+1| -2化简√(a+2)²-|2-b|+|a+b|-|a+1| -2
原式=(a+2)-(b-2)+(a+b)-(-a-1)
=a+2-b+2+a+b+a+1
=3a+5