早教吧作业答案频道 -->数学-->
如何将y=-1/20x^2+10x-440化为-1/20(x-100)^2+60?
题目详情
如何将y= -1/20x^2+10x-440化为-1/20(x-100)^2+60?
▼优质解答
答案和解析
-1/20x^2+10x-440
=-1/20(X方-200X)-440
=-1/20(X方-200X+100方)+100方*1/20-440
=-1/20(X-100)方+60
=-1/20(X方-200X)-440
=-1/20(X方-200X+100方)+100方*1/20-440
=-1/20(X-100)方+60
看了如何将y=-1/20x^2+1...的网友还看了以下：