1、1二次根数混合计算 218(12)5023 619243127-48+275(2 ) (2 ) 3201012( 3)0 )12( 23 0+)13(9 )32(81)2( 2( ) ( ) 2014 231420143( )2128|2 3| .2138 48326312+ 8-510(5-2 6)( 2- 3);3(1+ 2+ 3)(1- - ) ( 12-4 8)(2 31-4 5.0)1(24)(6)8 32152436)2()2( 3272)(3113832 (753)(753)4333 64125.04127 1(24)(6)82463 20(3)273 (6 2x )3 1324
2、823 361225)235)(235( 3523221763 )52430(5283250 2163)1526(2)3()12)(312274313()-+6254312231|1|27)3(0 1545+20520101+8236+2( ) 48326201103()5()27(1)13248277225(7)3 21(3)8(325)(3)5.08123 32132aa)23)(32( 18231271 0)31(32已知 求值: .,32,yx 223yx8二次根式混合计算 2 2 ( ) | | ( 2 ) 3 6 9 ( )x2 ( ) (x 0,y 0) ( ) 2 ( ) 1 (x 0,y0) ( ) 10(a 0,b 0) ( ) 2+( ) 0 +| |已知 x= ,y= ,求 x2y+xy2 的值