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Q : 7 Using $a^2-b^2=(a+b)(a-b)$ , find

(i) $51^2-49^2$

Answers (1)

best_answer

We know,

$a^2-b^2=(a+b)(a-b)$

Using this formula,

$51^2-49^2$ = (51 + 49)(51 - 49)

= (100)(2)

= 200

Posted by

HARSH KANKARIA

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