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If A = 2, B = − 2, Find the Value Of A2 + B2 - Mathematics

If a = 2, b = − 2, find the value of a2 + b2

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Solution

a2 + b2

= (2)2 + (-2)2 = 4 + 4 = 8

Concept: Evaluation of Algebraic Expressions by Substituting a Value for the Variable.
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Chapter 12: Algebraic Expressions - Exercise 12.3 [Page 242]
Q 4.1
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NCERT Class 7 Maths
Chapter 12 Algebraic Expressions
Exercise 12.3 | Q 4.1 | Page 242
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