TOÁN 8: OTHK 1
Authored by Duyên Nguyễn Thuý
Mathematics
8th Grade
Used 1+ times
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24 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
x2 - 4x +4
(x + 1)2
(2 + x)2
(x - 1)3
(x - 2)2
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
(3x - 1) (3x + 1) = ...
(3x - 1)2
9x2 - 1
3x2 -1
(3x + 1)2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-x3 + 6x2 - 12x + 8 = ...
(x -2)3
x3 - 8
x3 + 8
(2 - x )3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
8x3 + y3 = ...
(2x + y)(4x2 + 2xy + y3)
(2x - y)(4x2 + 2xy + y3)
(2x + y)(4x2 - 2xy + y3)
(2x + y)(4x2 + 4xy + y3)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(x + 5)(x2 - 5x + 25) = ...
x3 + 125
x2 + 25
(x + 5)3
(x + 5)2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sau khi thu gọn đơn thức 2.(-3.x3.y)y2 ta được đơn thức
-6x3y3
6x3y3
6x3y2
-6x2y3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bậc của đa thức xy + xy5 + x5yz là
6
7
5
4
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