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Byju's Answer
Standard VII
Mathematics
Properties of Addition and Subtraction
Evaluate usin...
Question
Evaluate using suitable identity.
198
2
- 102
2
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Solution
198
2
- 102
2
by using ( a + b ) ( a - b ) = a
2
- b
2
=( 198 + 102 ) ( 198 - 102 )
=300 * 96
=28800
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