1二次根式常用公式: 0),(),0( bababa),(),(,22)(baba2)(ba1、计算:(1) (2 ) (3) (4)364951685)(6)(7) (8) 351290(2)(9) (10)582.12、计算:2(1) (2) (3) 6435645(4) (5) (6) 25014(7) (8)9816713、计算:(1) (2) (3) 5067(3) (5) (6) 51050924312(4)(7) (8)2)3(2)1(3(9) (10)5201824、计算:(1) (2) (3) 315312)5(2) (5) (6) 21850)25(33258(7) (8)317105405、计算:(1) (2) (3) 4341275)10(4(4) (5) (6)14724851273932)6(6、计算:(1) (2) 54206374(2) (4) 7)2(2)37(5) (6)732)(487581(7) (8) (9)5326525021