化简:根号下(x-1)²+根号下x²+4x+4 (-2<x<1)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/28 10:53:05
![化简:根号下(x-1)²+根号下x²+4x+4 (-2<x<1)](/uploads/image/z/1637043-51-3.jpg?t=%E5%8C%96%E7%AE%80%EF%BC%9A%E6%A0%B9%E5%8F%B7%E4%B8%8B%EF%BC%88x-1%EF%BC%89%26%23178%3B%2B%E6%A0%B9%E5%8F%B7%E4%B8%8Bx%26%23178%3B%2B4x%2B4+%EF%BC%88-2%EF%BC%9Cx%EF%BC%9C1%EF%BC%89)
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化简:根号下(x-1)²+根号下x²+4x+4 (-2<x<1)
化简:根号下(x-1)²+根号下x²+4x+4 (-2<x<1)
化简:根号下(x-1)²+根号下x²+4x+4 (-2<x<1)
因为X大于2小于1,所以根号下(x—1)的平方开方后等于1—x,而根号下x的平方+4x+4等于根号下(x+2)的平方,开方后等于x+2,所以化简后等于3.