(1) ±³Àç¸í : ÇØÄ¿½º°ø¹«¿ø ¼öÇÐ 2±Ç(2) °ü·Ã ÆäÀÌÁö Âʼö : 5ȸ °í³µµ ¸ðÀÇ°í»ç-2¹ø(3) ¹®ÀÇ»çÇ× :
5ȸ °í³µµ ¸ðÀÇ°í»ç-2¹ø Çؼ³À» º¸¸é
xn(x-3){x-(a-3)}=(x-3){(x-3)Q(x)+3n}¿¡¼
(x-3)À» ³ª´²¼ xn{x-(a-3)}=(x-3)Q(x)+3nÀÌ µÇ°í
À§ ½Ä¿¡¼ ´Ù½Ã x=3À» ´ëÀÔÇÏ¿© a¸¦ ±¸Çϴµ¥,
(x-3)À» ³ª´©´Â °ÍÀº x=3ÀÌ ¾Æ´Ò¶§ ³ª´©´Â °ÍÀ̹ǷÎ,
³ª´«½Ä¿¡¼ x=3À» ´ëÀÔÇÏ¸é ¾ÈµÇ´Â°Å ¾Æ´Õ´Ï±î?
Çؼ³¼¿¡´Â Ç×µî½ÄÀ̶ó°íÇÏ¿© ´ëÀÔÇÏ¿© Ǫ´Âµ¥,
xn(x-3){x-(a-3)}=(x-3){(x-3)Q(x)+3n}ÀÌ Ç×µî½ÄÀ̶óµµ,
x=3À϶§´Â Á¿캯 0À̵Å, xn{x-(a-3)}=(x-3)Q(x)+3nÀÌ ¾Æ´Ï¶óµµ ¼º¸³ÇÏÀݾƿä.
µû¶ó¼, (x-3)À» ³ª´« xn{x-(a-3)}=(x-3)Q(x)+3nÀÌ
x=3À϶§´Â ¼º¸³ÇÏÁö ¾ÊÀ» ¼öµµ ÀÖ´Â °Í ¾Æ´Ñ°¡¿ä?
µû¶ó¼, xn{x-(a-3)}=(x-3)Q(x)+3n¿¡ x=3 ´ëÀÔÇÏ¸é ¾ÈµÇ´Â °Í ¾Æ´Ñ°¡¿ä?