ÌâÄ¿ÄÚÈÝ

£¨2013•Ö£ÖÝÄ£Ä⣩ÔĶÁijͬѧ½â·Öʽ·½³ÌµÄ¾ßÌå¹ý³Ì£¬»Ø´ðºóÃæÎÊÌ⣮
½â·½³Ì
2
x
+
x
x-3
=1
£®
½â£ºÔ­·½³Ì¿É»¯Îª£º
2(x-3)+x2=x(x-3)£®¡­¢Ù
2x-6+x2=x2-3x£®¡­¢Ú
2x-3x+x2-x2=6£®¡­¢Û
¡àx=-6£®¡­¢Ü

¼ìÑ飺µ±x=-6ʱ£¬¸÷·Öĸ¾ù²»Îª0£¬
¡àx=-6ÊÇÔ­·½³ÌµÄ½â£®¡­¢Ý
Çë»Ø´ð£º£¨1£©µÚ¢Ù²½±äÐεÄÒÀ¾ÝÊÇ
µÈʽµÄÐÔÖÊ
µÈʽµÄÐÔÖÊ
£»
£¨2£©´ÓµÚ
¢Û
¢Û
²½¿ªÊ¼³öÏÖÁË´íÎó£¬ÕâÒ»²½´íÎóµÄÔ­ÒòÊÇ
ÒÆÏî²»±äºÅ
ÒÆÏî²»±äºÅ
£»
£¨3£©Ô­·½³ÌµÄ½âΪ
x=
6
5
x=
6
5
£®
·ÖÎö£º£¨1£©È¥·ÖĸµÄÒÀ¾ÝΪµÈʽµÄÐÔÖÊ£»
£¨2£©´ÓµÚÈý±ß¿ªÊ¼³öÏÖ´íÎ󣬴íÎóµÄÔ­ÒòÊÇÒÆÏî²»±äºÅ£»
£¨3£©È¥À¨ºÅºó£¬ÒÆÏîºÏ²¢£¬½«xϵÊý»¯Îª1£¬Çó³öxµÄÖµ£¬´úÈë¼ìÑé¼´¿ÉµÃµ½Ô­·Öʽ·½³ÌµÄ½â£®
½â´ð£º½â£º£¨1£©µÚ¢Ù²½±äÐεÄÒÀ¾ÝÊǵÈʽµÄÐÔÖÊ£»
£¨2£©´ÓµÚ¢Û²½¿ªÊ¼³öÏÖÁË´íÎó£¬ÕâÒ»²½´íÎóµÄÔ­ÒòÊÇÒÆÏî²»±äºÅ£»
£¨3£©ÒÆÏîµÃ£º2x+3x+x2-x2=6£¬¼´5x=6£¬
½âµÃ£ºx=
6
5
£¬
¾­¼ìÑéÊÇÔ­·Öʽ·½³ÌµÄ½â£®
¹Ê´ð°¸Îª£º£¨1£©µÈʽµÄÐÔÖÊ£»£¨2£©¢Û£¬ÒÆÏî²»±äºÅ£»£¨3£©x=
6
5
µãÆÀ£º´ËÌ⿼²éÁ˽â·Öʽ·½³Ì£¬½â·Öʽ·½³ÌµÄ»ù±¾Ë¼ÏëÊÇ¡°×ª»¯Ë¼Ï롱£¬°Ñ·Öʽ·½³Ìת»¯ÎªÕûʽ·½³ÌÇó½â£®½â·Öʽ·½³ÌÒ»¶¨×¢ÒâÒªÑé¸ù£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø