Hằng đẳng thức đáng nhớ
Authored by Trang Ms
Mathematics
8th Grade
Used 26+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
(a + b)2 = ?
a2 + 2ab + b2
a2 - 2ab + b2
a2 + ab + b2
a2 - ab + b2
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
(a - b)2 = ?
a2 + 2ab + b2
a2 - 2ab + b2
a2 + ab + b2
a2 - ab + b2
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
a2 - b2 = ?
(a - b)(a - b)
(a + b)(a + b)
a2 + ab + b2
(a - b)(a + b)
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
a3 - b3 = ?
(a - b)(a2 - ab + b2)
(a - b)(a2 + ab - b2)
(a + b)(a2 + ab + b2)
(a - b)(a2 + ab + b2)
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
a3 + b3 = ?
(a - b)(a2 - ab + b2)
(a - b)(a2 + ab - b2)
(a + b)(a2 - ab + b2)
(a - b)(a2 + ab + b2)
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
(a + b)3 = ?
a3 + 3a2b + 3ab2 + b3
a3 + 3a2b + 3ab2 - b3
a3 - 3a2b + 3ab2 + b3
a3 + 3a2b - 3ab2 + b3
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
(a - b)3 = ?
a3 + 3a2b + 3ab2 + b3
a3 + 3a2b + 3ab2 - b3
a3 - 3a2b + 3ab2 - b3
a3 + 3a2b - 3ab2 + b3
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