- 01:44
x²-3y-5=0,求6y-2x²-6
- 00:19
YAgjD
- 00:29
JAAJJSSJSKDLSKKXKCKDISI yueududhfhfjdidi_哔哩哔哩_bilibili
- 01:14
xhyyxgtl
- 00:13
jjhjkijjufdthgdsd:jvx$jjhjkijj_哔哩哔哩_bilibili
- 03:24
SHHJ-YTKS
- 00:22
tghytssfcxy
- 01:07
yjwjss2.6
- 02:12
ajjhx
- 02:10
考考你:x²-y²=9,xy=6,求x和y