解方程:(1)2x^2-7x-5=0 (2)4x^2+9x+3=0 (3)5x^2-2x-4=0用配方法
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/01 09:28:41
![解方程:(1)2x^2-7x-5=0 (2)4x^2+9x+3=0 (3)5x^2-2x-4=0用配方法](/uploads/image/z/94198-22-8.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A%281%292x%5E2-7x-5%3D0+%282%294x%5E2%2B9x%2B3%3D0+%283%295x%5E2-2x-4%3D0%E7%94%A8%E9%85%8D%E6%96%B9%E6%B3%95)
xTn1~wegn"y=UJ*q"1T j A9 m4)D=(W`.{@{͌?4W,^,Gw,e$NI$c>S*3#ŲpQ]ֽ'th?HNͿ84r2z,{GH6И)e9 {1&ܿɒ241A
? r /OU;L ]EW5ba%`K!ݱQ
2 !-;fI#iHmķ
ae6HAFVB`1Ӈ~^C{Q-*mA{{mp=W&y