Docstoc

Class-8

Document Sample
Class-8 Powered By Docstoc
					                                  Practice Question Sheet

Q:1: The expression                       can be expanded as

Ans:


Q:2: Which of the following expressions is equivalent to the expression               ?



Ans:


Q:3:If the expression                           is written as (Ay − B)2, then the respective values of A and B are


Ans:2 and


Q: 4: What is the value of the expression (x2 + 4) (x + 3)?
Ans:


Q:5: What is the value of the expression                                  ?

Ans: 3
Q:6: If                , then what is the value of the expression             ?
Ans:1
Q:7:               ?

Ans:2−9
Q:8: What is the multiplicative inverse of 925?
Ans:9−25

Q:9: If 82x = 16(x + 4), then x equals
Ans: 8
Q: 10: If a = 11, the value of (a− 25 − a− 27) is
Ans:120 × 11− 27
Q:11: What is the simplified form of the expression 5050 ÷ 2525?
Ans: 10025
Q:12: What is the value of the expression                                             ?
Ans:


Q:13: If ab = ac, where b and c are non-zero, and a ≠ −1 or 1, then what is the value of the expression

       ?

Ans: 1

Q:14: What is the value of the expression          for a = 2?

Ans:1

				
DOCUMENT INFO
Shared By:
Tags:
Stats:
views:12
posted:11/21/2012
language:
pages:2