解方程(x+5)^2-(x+9)(x-9)=180
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 22:39:10
![解方程(x+5)^2-(x+9)(x-9)=180](/uploads/image/z/1633892-68-2.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%88x%2B5%EF%BC%89%5E2-%28x%2B9%EF%BC%89%EF%BC%88x-9%EF%BC%89%EF%BC%9D180)
x){|i;~B8#]
mK $a50I*'I~
6"HРBTĴ0 EAl]P\F 100XԔ
-VBX540e9e~ `
解方程(x+5)^2-(x+9)(x-9)=180
解方程(x+5)^2-(x+9)(x-9)=180
解方程(x+5)^2-(x+9)(x-9)=180
(x+5)^2-(x+9)(x-9)=180
x^2+10x+25-x^2+81=180
10x=180-25-81=74
x=7.4
(x+5)^2-(x+9)(x-9)=180
x²+10x+25-x²+81=180
10x=180-106
10x=74
x=7.4
(x+5)^2-(x+9)(x-9)=180
x^2+10x+25-x^2+81=180
10x=180-25-81=74
x=7.4