打开App
360P
初中数学：若x²+3x+9=0，怎么求x³的值？先变形，再整体代入法
初中数学：若x²+3x+9=0，怎么求x³的值？先变形，再整体代入法
初中数学，解一元二次方程，根的判别式，韦达定理，中考培优真题93/168
App03:15
App02:07
App03:05
App05:36
App03:59
App03:23
App08:08
App03:20
App03:10
App01:51
App03:11
App03:33
App02:24
App05:46
App02:33
App03:38
App02:17
App03:36
App07:04
App03:58
App03:24
App06:16
App03:18
App05:44
App02:50
App05:20
App08:05
App03:17
App06:32
App03:16
App01:33打开App观看
