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Add the Following. Lsquare2 + Msquare2, Msquare2 + Nsquare2, Nsquare2 + Lsquare2, 2lm + 2mn + 2nl - Mathematics

Add the following.  l2 + m2, m2 + n2, n2 + l2, 2lm + 2mn + 2nl

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Solution

The given expressions written in separate rows, with like terms one below the other and then the addition of these expressions are as follows.

Thus, the sum of the given expressions is 2(l2 + m2 + n2 + lm + mn + nl).

Concept: Addition of Algebraic Expressions
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Chapter 9: Algebraic Expressions and Identities - Exercise 9.1 [Page 140]
Q 3.4
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NCERT Class 8 Maths Textbook
Chapter 9 Algebraic Expressions and Identities
Exercise 9.1 | Q 3.4 | Page 140
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