
ôn tập trắc nghiệm Toán 8 gk1 24,25
Authored by Thao Nhu
Mathematics
8th Grade
Used 6+ times

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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 1: Biểu thức nào sau đây là đơn thức?
3x+2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x2y
xy
x2y2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x+y+(x-y)=
2x
x2
-x2y2
x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x+y-(x-y)=
2x
2y
-2y
x
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 14: Trong các khẳng định sau đây, khẳng định nào là đúng?
A. (A − B)2 = A2 − 2AB + B2
B. (A − B)2 = A2 + 2AB + B2
C. (A − B)2 = A2 − 2AB − B2
D. (A − B)2 = A2 − AB + B2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x2-6x+9=
A. (x-9)2
B. (x-6)2
C. (x+3)2
D. (x-3)2
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