ALGEBRIC ID ENTITIES
Authored by Gunda Subbarao
Mathematics
9th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(2a+3b)3
2a3+36a2b+54ab2+3b3
8a3+27b3
8a3+36a2b+54ab2+27b3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(a+b)2=
a2+2ab+b2
a2-2ab+b2
a2+2ab-b2
-a2+2ab+b2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(a + b)3 =
(a + b)3 =
a3 - b3 + 3ab(a + b)
a3 + b3 - 3ab(a + b)
a3 + b3 + 3ab(a - b)
a3 + b3 + 3ab(a + b)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a3 - b3 =
a3 - b3 =
(a + b)(a2 + ab + b2)
(a - b)(a2 + ab - b2)
(a - b)(a2 - ab + b2)
(a - b)(a2 + ab + b2)
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
x(a + b) =
x(a + b) =
xa + xb.
xa + xb.
xa + xb.
xa - xb.
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
(x + y + z)2 = x2 + y2 + z2 + 2xy + 2yz + 2zx
(x + y + z)2 = x2 + y2 + z2 + 2xy + 2yz + 2zx
x2 + y2 + z2 + 2xy + 2yz + 2zx
x2 + y2 + z2 -2xy + 2yz + 2zx
x2 + y2 + z2 + 2xy + 2yz - 2zx
x2 + y2 + z2 + 2xy + 2yz + 2zx
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