Bài tập 2 - Luyện tập chung
Authored by Lap Lam
Mathematics
8th Grade
Used 2+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(A + B)2 =
A2 + 2AB + B2
(A – B)(A + B)
A3 + 3A2B + 3AB2 + B3
A2 - 2AB + B2
2.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
A2 – B2 =
(A + B)3
A3 + 3A2B + 3AB2 + B3
(A – B)(A + B)
A2 + 2AB + B2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(A - B)2 =
(A – B)(A + B)
A2 - 2AB + B2
A3 + 3A2B + 3AB2 + B3
A3 – 3A2B + 3AB2 – B3
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
A3 + B3 =
A3 + 3A2B + 3AB2 + B3
A3 – 3A2B + 3AB2 – B3
(A – B)(A2 + AB + B2)
(A + B)(A2 – AB + B2)
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
(A + B)3 =
A3 + 3A2B + 3AB2 + B3
A3 – 3A2B + 3AB2 – B3
(A + B)(A2 – AB + B2)
(A - B)(A2 + AB + B2)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A3 – B3 =
(A + B)(A2 – AB + B2)
(A – B)(A2 + AB + B2)
A3 – 3A2B + 3AB2 – B3
A3 + 3A2B + 3AB2 + B3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(A – B)3 = A3 – 3A2B + 3AB2 – B3
(A + B)(A2 – AB + B2)
(A – B)(A2 + AB + B2)
A3 – 3A2B + 3AB2 – B3
A3 + 3A2B + 3AB2 + B3
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