106 x 106 – 94 x 94 = ?

  1. 2400
  2. 2000
  3. 1904
  4. 1906
Monis Rasool Professor Asked on 21st May 2015 in Maths.
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    Answer; (1)2400
    106 x 106 – 94 x 94 = (106)2 – (94)2

    (106)2 – (94)2 = (106 – 94) (106 + 94)                                         [Formula- a2 – b2 = (a – b) (a + b)]

    = (12) (200) = 12 x 200

    = 2400                  Ans.

    Hence, the value is 2400

    Anurag Mishra Professor Answered on 22nd May 2015.
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