Ôn tập cuối học kì I Toán 8
8th Grade
•42 Qs
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Ôn tập cuối học kì I Toán 8
Quiz
•
Computers
•
8th Grade
•
Practice Problem
•
Medium
Thuy Vu
Used 6+ times
FREE Resource
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42 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Câu 1. Đẳng thức nào sau đây là hằng đẳng thức?
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Biểu thức 4x2 −4x + 1 được viết dưới dạng hằng đẳng thức bình phương của một hiệu là
(2x − 1)2
(2x + 1)2
(4x − 1)2
(2x − 1)(2x + 1)
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Viết biểu thức 25x2 + 20xy + 4y2 dưới dạng bình phương của một tổng.
(25x + 4y)2
(5x + 2y)2
(5x−2y)(5x+2y)
(25x + 4)2
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Rút gọn biểu thức P = (3x − 1)2 − 9x(x + 1) ta được
P = 1
P = – 1
P = – 15x + 1
P = 15x + 1
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Giá trị x thỏa mãn (x−6)(x+6)−(x+3)2=9 là
x = 9
x = 1
x = – 9
x = – 1
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tìm x, biết (3x − 4)2 − (2x−1)2=0
x = 3 hoặc x = -1
x = -3 hoặc x = -1
x = -3 hoặc x = 1
x = 3 hoặc x = 1
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