ÌâÄ¿ÄÚÈÝ
17£®¼ÆË㣺£¨1£©£¨$\sqrt{3}$-$\sqrt{2}$£©2014•£¨$\sqrt{3}$+$\sqrt{2}$£©2015£®
£¨2£©$\sqrt{32}$-$\sqrt{75}$-$\sqrt{0.5}$-2$\sqrt{\frac{1}{3}}$
£¨3£©£¨4$\sqrt{6}$-4$\sqrt{\frac{1}{2}}$+3$\sqrt{8}$£©¡Â2$\sqrt{2}$£®
£¨4£©¼ÆË㣺$\sqrt{12}$-£¨2009£©0+£¨$\frac{1}{2}$£©-1+|$\sqrt{3}$-1|
·ÖÎö £¨1£©ÏÈÀûÓûýµÄ³Ë·½µÃµ½Ôʽ=[£¨$\sqrt{3}$-$\sqrt{2}$£©£¨$\sqrt{3}$+$\sqrt{2}$£©]2014•£¨$\sqrt{3}$+$\sqrt{2}$£©£¬È»ºóÀûÓÃÆ½·½²î¹«Ê½¼ÆË㣻
£¨2£©ÏȰѸ÷¶þ´Î¸ùʽ»¯¼òΪ×î¼ò¶þ´Î¸ùʽ£¬È»ºóºÏ²¢¼´¿É£»
£¨3£©ÏȽøÐжþ´Î¸ùʽµÄ³ý·¨ÔËË㣬Ȼºó°Ñ¸÷¶þ´Î¸ùʽ»¯¼òΪ×î¼ò¶þ´Î¸ùʽºóºÏ²¢¼´¿É£»
£¨4£©¸ù¾ÝÁãÖ¸ÊýÃݵÄÒâÒåºÍ¸ºÕûÊýÃݵÄÒâÒ弯Ë㣮
½â´ð ½â£º£¨1£©Ôʽ=[£¨$\sqrt{3}$-$\sqrt{2}$£©£¨$\sqrt{3}$+$\sqrt{2}$£©]2014•£¨$\sqrt{3}$+$\sqrt{2}$£©
=£¨3-2£©2014•£¨$\sqrt{3}$+$\sqrt{2}$£©
=$\sqrt{3}$+$\sqrt{2}$£»
£¨2£©Ôʽ=4$\sqrt{2}$-5$\sqrt{3}$-$\frac{\sqrt{2}}{2}$-$\frac{2\sqrt{3}}{3}$
=$\frac{7\sqrt{2}}{2}$-$\frac{17\sqrt{3}}{3}$£»
£¨3£©Ôʽ=2$\sqrt{3}$+2$\sqrt{\frac{1}{2}¡Á\frac{1}{2}}$+$\frac{3}{2}$$\sqrt{4}$
=2$\sqrt{3}$-1+3
=2$\sqrt{3}$+2£»
£¨4£©Ôʽ=2$\sqrt{3}$-1+2+$\sqrt{3}$-1
=3$\sqrt{3}$£®
µãÆÀ ±¾Ì⿼²éÁ˶þ´Î¸ùʽµÄ»ìºÏÔËË㣺ÏȰѸ÷¶þ´Î¸ùʽ»¯¼òΪ×î¼ò¶þ´Î¸ùʽ£¬È»ºó½øÐжþ´Î¸ùʽµÄ³Ë³ýÔËË㣬Ôٺϲ¢¼´¿É£®
| A£® | Õý·½ÐÎ | B£® | µÈ±ßÈý½ÇÐÎ | C£® | ³¤·½ÐÎ | D£® | ƽÐÐËıßÐÎ |
| A£® | £¨x-3£©2=2 | B£® | 325x2-326x+1=0 | C£® | x2-100x+2500=0 | D£® | 2x2+3x-1=0 |