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Class 8 Maths Chapter 9 Algebraic Expressions And Identities Quiz 2 (25 MCQs)

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1. A rectangle has a length say 'l' and breadth say 'b'. The length is increased and breadth is decreased by 4 units. The perimeter does not changes and so does the area of rectangle.Which among below is a relation between length and breadth?
2. (dx-yz + a)/(bx-ad + dy) when a=8, b=6, d=3, x=4, y=5, and z=1
3. In the expression 3xyz-8y, what is the co-efficient?
4. The product of 5x and 3y is:
5. Which of the following expression is equivalent to the expression (y-x + 3) (y + x-3)?
6. A$^{2}$-b$^{2}$ is a product of
7. X$^{2}$-(x-y)$^{2 }$* y If x =-5 and y =-8
8. What do terms themselves form as a product of?
9. Find 87$^{2}$-13$^{2}$
10. If we subtract 3x + 7y from-3x-7y, then we get .....
11. 2 less than the quotient of d and 6
12. Can the following expression be a monomial (xyz + a) where 'a' is any whole number
13. Match this word expression with the correct algebraic expression:a number decreased by 9
14. What does the (E) in PEMDAS mean?
15. What is an expression that contains only one term called?
16. The product of 4x and 0 is:
17. Simplify the Expression-x$^{2}$+2-1+6x$^{2}$-4x$^{2}$
18. Evaluate:-x(y-x) + (3x-y) when x =-2 and y = 5
19. A ..... is the numerical term in an algebraic expression.
20. The coefficient of y in the term of-y$^{3 }$is:
21. Solve (y$^{4 }$-5)(7-y$^{4}$) using suitable identity
22. Simplify the expression (simplificar):6 + 2(7x-3)
23. Which expression is equivalent to3x + 1/2(-12x-16)
24. 17 less than the product of 3 and m
25. Which expression matches:The sum of 6 and 5 doubled
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