1.计算x2(注:这就是X的平方)+(x-1)乘(2x+1)+(x-2)乘(x+3)的值,其中x= -2 小明把“x= -2”错抄成“x=2”,但计算结果与正确答案却是一样的,你说这是怎么回事?2.已知a,b,c为三角形的三边,
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/13 04:01:45
![1.计算x2(注:这就是X的平方)+(x-1)乘(2x+1)+(x-2)乘(x+3)的值,其中x= -2 小明把“x= -2”错抄成“x=2”,但计算结果与正确答案却是一样的,你说这是怎么回事?2.已知a,b,c为三角形的三边,](/uploads/image/z/14742427-67-7.jpg?t=1.%E8%AE%A1%E7%AE%97x2%EF%BC%88%E6%B3%A8%EF%BC%9A%E8%BF%99%E5%B0%B1%E6%98%AFX%E7%9A%84%E5%B9%B3%E6%96%B9%EF%BC%89%2B%EF%BC%88x-1%EF%BC%89%E4%B9%98%EF%BC%882x%2B1%EF%BC%89%2B%EF%BC%88x-2%EF%BC%89%E4%B9%98%EF%BC%88x%2B3%EF%BC%89%E7%9A%84%E5%80%BC%2C%E5%85%B6%E4%B8%ADx%3D+-2+%E5%B0%8F%E6%98%8E%E6%8A%8A%E2%80%9Cx%3D+-2%E2%80%9D%E9%94%99%E6%8A%84%E6%88%90%E2%80%9Cx%3D2%E2%80%9D%2C%E4%BD%86%E8%AE%A1%E7%AE%97%E7%BB%93%E6%9E%9C%E4%B8%8E%E6%AD%A3%E7%A1%AE%E7%AD%94%E6%A1%88%E5%8D%B4%E6%98%AF%E4%B8%80%E6%A0%B7%E7%9A%84%2C%E4%BD%A0%E8%AF%B4%E8%BF%99%E6%98%AF%E6%80%8E%E4%B9%88%E5%9B%9E%E4%BA%8B%3F2.%E5%B7%B2%E7%9F%A5a%2Cb%2Cc%E4%B8%BA%E4%B8%89%E8%A7%92%E5%BD%A2%E7%9A%84%E4%B8%89%E8%BE%B9%2C)
xV[OG+~vwzmRl**J^q\lpII ̙]?͎hKZ5s.933g&15W_N87k8啓 o}Zm'oQHUljo6f[ANGskv2!jy>:壳-9[ l¢yIȻdnjݫx5Gg\4
w3;+^ތPoi)-6s/t(!_DZ~P?)#9-SOzTn K,·W