²é¿´: 866  |  »Ø¸´: 6

yyfeifei

ľ³æ (ÕýʽдÊÖ)

[ÇóÖú] Ò»µÀÒòʽ·Ö½â5½ð±Ò

£¨c+a-b£©£¨b+c-a£©£¨a+b-c£©+a£¨a-b+c£©£¨a+b-c£©+b£¨a+b-c£©£¨-a+b+c£©+c£¨-a+b+c£©£¨a-b+c£©
»Ø¸´´ËÂ¥

» ±¾ÌûÒÑ»ñµÃµÄºì»¨£¨×îÐÂ10¶ä£©

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ž[د ”0908

ľ³æ (ÕýʽдÊÖ)

ÌØÖÖ±ø

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
yyfeifei: ½ð±Ò+5, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, лл 2012-10-30 09:28:36
=(a-b+c)[(-a+b+c)(a+b-c)+a(a+b-c)-b(-a+b+c)+a(-a+b+c)]]
=(a-b+c)[(-a+b+c)(a+b-c-b+c)+a(a+b-c)]
=(a-b+c)[a(-a+b+c)+a(a+b-c)]
=a(a-b+c)(-a+b+c+a+b-c)
=2ab(a-b+c)
×Ô¼ºÑ¡ÔñµÄ·£¬¹ò×ÅÒ²Òª×ßÏÂÈ¥£¡
2Â¥2012-10-29 15:20:12
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

zaimeng155

ÖÁ×ðľ³æ (ÖªÃû×÷¼Ò)

ɽáÛº£¾¡Ø­Ç§¹ÅÆæ·å

ÒýÓûØÌû:
2Â¥: Originally posted by Ž[د ”0908 at 2012-10-29 15:20:12
=(a-b+c)]
=(a-b+c)
=(a-b+c)
=a(a-b+c)(-a+b+c+a+b-c)
=2ab(a-b+c)

Ã÷ÏÔ´íÁË

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
¿ñÍý¶øÓÐ×ÔÖªÖ®Ã÷£¬½¾°Á¶øÁôÒ»Õŵ×ÅÆ¡£(º£µ½¾¡Í·Ìì×ö°¶£¬É½µÇ¾ø¶¥ÎÒΪ·å)¡¾·­¿ªÐµÄÒ»Ò³£¬»úÓöÓëÌôÕ½²¢´æ¡¿¡ª¡ªÎÒ²»ÀÛ£¬²»ÀÛÊǼٵIJ»ÅÂÁ˲ÅÊÇÕæµÄ¡ª¡ª
3Â¥2012-10-30 08:29:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yyfeifei

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by Ž[د ”0908 at 2012-10-29 15:20:12
=(a-b+c)]
=(a-b+c)
=(a-b+c)
=a(a-b+c)(-a+b+c+a+b-c)
=2ab(a-b+c)

Ðֵܣ¬ºÃÏñÄã¸øÅ¼µÄ´ð°¸ÓеãÎÊÌ⣬Ҫ²»ÄãÔÙÍÆÍÆ£¿ºÇºÇ
4Â¥2012-10-31 08:34:05
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÇïÓê·ÉÒ¶

ľ³æ (СÓÐÃûÆø)

ËÍÏÊ»¨Ò»¶ä
Õâ¸ö×Ô¼º¶¯ÊÖËãËãÒ²²»ÄѰɡ£ 4abc
ǰÁ½ÏîÏà¼ÓµÃ £¨b+c)(a+c-b)(a+b-c)=b(a+c-b)(a+b-c)+c(a+c-b)(a+b-c)
ÔÙ·Ö±ðÓëºóÁ½ÏîÏà¼Ó
b(a+c-b)(a+b-c)+b(a+b-c)(b+c-a)=2bc(a+b-c)
c(a+c-b)(a+b-c)+c(b+c-a)(a+c-b)=2bc(a+c-b)
ËüÃǵĺÍΪ4abc.

ѧÊýѧҪ¶à¶¯ÊÖ£¬Ã»ÓÐÏëµ½¼òµ¥µÄ·½·¨Ç°£¬²»·ÁÊÔÊÔ±¿·½·¨¡£
5Â¥2012-10-31 14:18:13
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÂíÁú˧

гæ (³õÈëÎÄ̳)

5Â¥Õý½â£¬¹ÛµãÒ²Õý½â
6Â¥2012-10-31 17:39:45
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yyfeifei

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
5Â¥: Originally posted by ÇïÓê·ÉÒ¶ at 2012-10-31 14:18:13
Õâ¸ö×Ô¼º¶¯ÊÖËãËãÒ²²»ÄѰɡ£ 4abc
ǰÁ½ÏîÏà¼ÓµÃ £¨b+c)(a+c-b)(a+b-c)=b(a+c-b)(a+b-c)+c(a+c-b)(a+b-c)
ÔÙ·Ö±ðÓëºóÁ½ÏîÏà¼Ó
b(a+c-b)(a+b-c)+b(a+b-c)(b+c-a)=2bc(a+b-c)
c(a+c-b)(a+b-c)+c(b+c-a)(a+c-b)=2b ...

´óÏÀ½ÌѵµÄÊÇ£¬»¹ÊÇ¿ªÊ¼ÏëÈ¡ÇÉ
7Â¥2012-11-01 09:18:20
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ yyfeifei µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 303Çóµ÷¼Á +4 ԪϦԪ 2026-03-20 4/200 2026-03-23 19:00 by macy2011
[¿¼ÑÐ] ¹¤¿Æ²ÄÁÏ085601 279Çóµ÷¼Á +8 À§ÓÚÐdz¿ 2026-03-17 10/500 2026-03-23 13:05 by ×íÔÚ·çÀï
[¿¼ÑÐ] 291Çóµ÷¼Á +5 ‹üÈA 2026-03-22 5/250 2026-03-23 09:20 by haoshis
[¿¼ÑÐ] 0703 µ÷¼Á +3 ÎÒ¿ÉÒÔÉϰ¶µÄ¶Ô 2026-03-16 6/300 2026-03-23 08:52 by ×íÔÚ·çÀï
[¿¼ÑÐ] 0854µç×ÓÐÅÏ¢Çóµ÷¼Á +3 ¦Á____ 2026-03-22 3/150 2026-03-22 21:28 by zhq0425
[¿¼ÑÐ] 354Çóµ÷¼Á +7 Tyoumou 2026-03-18 10/500 2026-03-22 11:11 by ÈËÀ´Ê¢
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖпƼ¼´óѧ071000£¬Çóµ÷¼Á +4 ÑØ°¶Óб´¿Ç6 2026-03-21 4/200 2026-03-22 07:21 by ilovexiaobin
[¿¼ÑÐ] ²ÄÁϹ¤³Ìר˶ 348·ÖÇóµ÷¼Á +3 ¶¬´Ç. 2026-03-17 5/250 2026-03-21 18:47 by ѧԱ8dgXkO
[¿¼ÑÐ] 299Çóµ÷¼Á +5 shxchem 2026-03-20 7/350 2026-03-21 17:09 by ColorlessPI
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤£¨0856£©304Çó BÇø µ÷¼Á +3 Çñgl 2026-03-21 3/150 2026-03-21 13:47 by lature00
[¿¼ÑÐ] Çóµ÷¼Á +3 °×QF 2026-03-21 3/150 2026-03-21 13:12 by zhukairuo
[¿¼ÑÐ] ²ÄÁÏ 336 Çóµ÷¼Á +3 An@. 2026-03-18 4/200 2026-03-21 01:39 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ£¬327·Ö£¬²ÄÁÏÓ뻯¹¤085600 +9 Ncdx123456 2026-03-19 9/450 2026-03-20 23:41 by lovewei0727
[¿¼ÑÐ] 308Çóµ÷¼Á +3 °¢½ã°¢½ã¼Ò°¡ 2026-03-18 3/150 2026-03-20 23:24 by JourneyLucky
[¿¼ÑÐ] ¿¼Ñе÷¼ÁÇóÑ§Ð£ÍÆ¼ö +3 ²®ÀÖ29 2026-03-18 5/250 2026-03-20 22:59 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄÏÀí¹¤085701»·¾³302Çóµ÷¼ÁԺУ +3 ¿ûè÷ÎÀ¶Ó 2026-03-20 3/150 2026-03-20 19:28 by zhukairuo
[¿¼ÑÐ] ¹ãÎ÷´óѧ¼ÒÇÝÒÅ´«ÓýÖÖ¿ÎÌâ×é2026Äê˶ʿÕÐÉú£¨½ÓÊÕ¼ÆËã»úרҵµ÷¼Á£© +3 123°¢±ê 2026-03-17 3/150 2026-03-20 15:58 by ·ÉÐÐçù
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤Çóµ÷¼Á +6 Ð÷ÐÒÓë×Ó 2026-03-17 6/300 2026-03-19 13:27 by houyaoxu
[¿¼ÑÐ] ±¾¿ÆÖ£ÖÝ´óѧÎïÀíѧԺ£¬Ò»Ö¾Ô¸»ª¿Æ070200ѧ˶£¬346Çóµ÷¼Á +4 ÎÒ²»ÊÇÒ»¸ù´Ð 2026-03-18 4/200 2026-03-19 09:11 by ¸¡ÔÆ166
[¿¼ÑÐ] ¿¼Ñе÷¼Á +3 ä¿ya_~ 2026-03-17 5/250 2026-03-17 09:25 by Winj1e
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û