Đề kiểm tra môn Đại số Khối 9

BÀI TẬP
Bài 1: Tính:
a. b . c. 
Bài 2: Khử mẫu của biểu thức lấy căn. (giả thiết các biểu thức chứa chữ đều có nghĩa )
a. b. c. 
d. e. (với x>3)
 Bài 3: Trục căn thức ở mẫu:
 a. ;	;	;	;
 b. c. d. e. ;	 f. ;
BÀI LÀM
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a. 
a. 
b. 
c. 
d. 
e.