10x²+530x=75,x等于几?
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/22 11:52:41
10x²+530x=75,x等于几?10x²+530x=75,x等于几?10x²+530x=75,x等于几?x²+53x=7.5x²+53x+702.
10x²+530x=75,x等于几?
10x²+530x=75,x等于几?
10x²+530x=75,x等于几?
x²+53x=7.5
x²+53x+702.25=7.5+702.25
(x+26.5)²=709.75
x = -26.5±√2839/2