3.3 二次根式的运算与化简（练习）-初升高数学衔接课程（苏教版）【2019原创资源大赛】

3.3二次根式的运算与化简 一．基础知识巩固 1._________________________________________________叫二次根式. 2.满足下列两个条件的二次根式叫最简二次根式: ⑴________________________________;⑵_________________________________. 3.将二次根式化为最简二次根式步骤: ⑴______________________________________________________________; ⑵______________________________________________________________. 4._________________________________________________________叫同类二次根式. 5.二次根式的性质 ⑴(=________________. )2=__________; ⑵ 6.二次根式的加减法_______________________________________________________. 7.二次根式的乘除法、乘方运算. ⑴)n=____________.=_____________; ⑶(=______________; ⑵· 8._____________________________________________________________叫分母有理化.分母有理化的方法是________________________________________. 9._________________________________________________________叫互为有理化因式. 10.二次根式的混合运算_____________________________________________________. 11.化简的方法:____________________________________________________. 二．检测提高 1.化简⑴(x≥0,x≥0). (a≥0,b≥0); ⑵ 2.计算⑴)(x>y≥0)－)÷