推 rocketX:...= = 218.167.175.106 12/22
推 nervouschang:.......... 218.166.44.2 12/22
推 guinfirst:雖然對,但還是0分 140.138.5.196 12/22
推 rocketX:.....哪裡對了 = = 218.167.175.106 12/22
推 yuki99:本社應數系四小龍請解答 140.119.199.148 12/22
推 sakee:我也以為是1說.. @@a 數學不好... 61.219.21.2 12/22
→ rejection:去笨板找吧 答案是0 (x-x) 140.119.191.12 12/23
→ sakee:明明前一個是變數...後一個是常數阿 XD 61.219.21.2 12/24