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Question
If a = 2, b = −2, find the value of a2 − b2.
Sum
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Solution
a2 - b2 putting a = 2 and b = -2 in the given equation
= (2)2 - (-2)2
= 4 - 4
= 0
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Chapter 10: Algebraic Expressions - EXERCISE 10.2 [Page 168]
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