化简:{(a2-4a+4)/(a2+2a+1)}× {(a+1)/(a²-4)}

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/16 15:27:35

化简:{(a2-4a+4)/(a2+2a+1)}× {(a+1)/(a²-4)}
化简:{(a2-4a+4)/(a2+2a+1)}× {(a+1)/(a²-4)}

化简:{(a2-4a+4)/(a2+2a+1)}× {(a+1)/(a²-4)}
{(a2-4a+4)/(a2+2a+1)}× {(a+1)/(a²-4)}
=[(a-2)²/(a+1)²]×[(a+1)/[(a+2)(a-2)]]
=(a-2)/[(a+1)(a+2)]