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MCQ Questions for CBSE Class 12 with Answers
MCQ Questions for CBSE Class 11 with Answers
MCQ Questions for CBSE Class 10 with Answers
MCQ Questions for CBSE Class 9 with Answers
MCQ Questions for CBSE Class 8 with Answers
MCQ Questions for CBSE Class 7 with Answers
MCQ Questions for CBSE Class 6 with Answers
MCQ Questions for CBSE Class 5 with Answers
MCQ Questions for CBSE Class 4 with Answers
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MCQ Questions for CBSE Class 1 with Answers
Quiz
CBSE
/
Class 8
/
Maths
/
Algebraic Expressions and Identities
1.
The area of a rectangle with length 2l²m and breadth 3lm² is
6l³m³
l³m³
2l³m³
4l³m³
2.
The volume of a cube of side 2a is
4a²
2a
8a³
8
3.
The volume of a cuboid of dimensions a, b, c is
abc
a²b²c²
a³b³c³
none of these
4.
(x - y)(x + y) + (y - z)(y + z) + (z - x) (z + x) is equal to
0
x² + y² + z²
xy + yz + zx
x + y + z
5.
(a + b)² is equal to
a² + b² - 2ab
a² + b² + 2ab
a² + b²
2ab
6.
(a - b)² is equal to
a² + b² - 2ab
a² + b² + 2ab
a² + b²
2ab
7.
a² - b² is equal to
2ab
-2ab
(a + b) (a - b)
ab
8.
An algebraic expression that contains only one term is called:
Monomial
Binomial
Trinomial
None of the above
9.
5x + 6y is a:
A. Monomial
Binomial
Trinomial
None of the above
10.
The algebraic expression 3x + 2y + 6 is
monomial
Binomial
Trinomial
None of the above
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