Algebraic Identities
Authored by Sinan Sabz Ali
Mathematics
8th Grade
Used 138+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
(a + b) (a - b) =
a2 - 2ab + b2
a2 + 2ab + b2
a2 – b2
2 (a2 + b2)
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
(a + b)2 =
a2 - 2ab + b2
a2 + 2ab + b2
2 (a2 + b2)
4ab
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
a3 + b3 + 3ab(a + b) =
(a - b)3
a3 + b3
a3 - b3
(a + b)3
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
(a + b)2 - (a - b)2 =
4ab
2 (a2 + b2)
a2 – b2
(a - b ) (a2 + ab + b2)
5.
MULTIPLE CHOICE QUESTION
20 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
20 sec • 1 pt
(a - b)3
a3 - b3 - 3ab(a - b)
a3 + b3 + 3ab(a + b)
(a - b ) (a2 + ab + b2)
(a - b ) (a2 + ab + b2)
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
2 (a2 + b2) =
(a + b)2
a2 – b2
(a + b)2 + (a - b)2
(a + b)2 - (a - b)2
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