Answers

  • LJK
  • Helping Hand
2015-07-10T18:53:12+05:30
248*2=496
2*2=4

therefore,496-4=492
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2015-07-10T19:32:25+05:30
(248)2 - (2)2
   Use identity, a2 - b2 = (a-b)(a+b)
= (248 - 2)(248 + 2)
= 246 * 250
= 61500

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