ÌâÄ¿ÄÚÈÝ

ͼ¢ÙÊÇÒ»¸ö³¤Îª2m¡¢¿íΪ2nµÄ³¤·½ÐΣ¬ÑØͼÖÐÐéÏßÓüôµ¶Æ½¾ù·Ö³ÉËÄ¿éС³¤·½ÐΣ¬È»ºó°´Í¼¢ÚµÄÐÎ״Χ³ÉÒ»¸öÕý·½ÐΣ®
£¨1£©Í¼¢ÚÖеÄÒõÓ°²¿·ÖµÄÃæ»ýΪ______£»
£¨2£©¹Û²ìͼ¢ÚÇëÄãд³öÈý¸ö´úÊýʽ£¨m+n£©2¡¢£¨m-n£©2¡¢mnÖ®¼äµÄµÈÁ¿¹ØϵÊÇ______£®
£¨3£©Êµ¼ÊÉÏÓÐÐí¶à´úÊýºãµÈʽ¿ÉÒÔÓÃͼÐεÄÃæ»ýÀ´±íʾ£®Èçͼ¢Û£¬Ëü±íʾÁË______£®

£¨4£©ÊÔ»­³öÒ»¸ö¼¸ºÎͼÐΣ¬Ê¹ËüµÄÃæ»ýÄܱíʾ£¨m+n£©£¨3m+n£©=3m2+4mn+n2£®£¨ÔÚͼÖбê³öÏàÓ¦µÄ³¤¶È£©
£¨1£©£¨m-n£©2£»£¨2£©£¨m-n£©2=£¨m+n£©2-4mn£»
£¨3£©£¨2m+n£©£¨m+n£©=2m2+3mn+n2£»
£¨4£©´ð°¸²»Î¨Ò»£º
ÀýÈ磺
£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

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

¾«Ó¢¼Ò½ÌÍø