Book: NCERT - Mathematics
Chapter: 9. Algebraic Expressions and Identities
Subject: Maths - Class 8th
Q. No. 4 of Exercises 9.3
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4
Simplify 
and find its values for
(i) 
(ii) 
(i) Substituting x = 3 in the expression 
(ii) Substituting x = 1/2 in the expression 
6
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5
Add: 
and 
and
5
Add: 
and 
and 
