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 value for
(i) 
(ii) 
(iii) 
(i) Substituting a = 0 in the expression 
(ii) Substituting a = 1 in the expression 
(iii) Substituting a = -1 in the expression 
6
Chapter Exercises
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5
Add: 
and 
and
5
Add: 
and 
and 
