Question

(7.25)² using identity

Answer 1

Solution :

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We know the algebraic

Identity :

( x + y )² = x² + 2xy + y²

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Here ,

7.25²

= ( 7 + 0.25 )²

= 7² + 2 × 7 × 0.25 + ( 0.25 )²

= 49 + 3.5 + 0.0625

= 52.5 + 0.0625

= 52.5625

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Answer 2

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