Class VIII

By solving (4x)3, answer will be
  1. 84x2
  2. 64x2
  3. 64x4
  4. 64x3
By simplifying (x3y2)2 for negative indices, answer will be
  1. x-6y-4
  2. 1/x-5y-3
  3. 1/x-4y-2
  4. 1/x-6y-4
Product of 9.2 x 105 and 4.3 x 109 is
  1. 3.96 x 1011
  2. 3.96 x 1013
  3. 3.96 x 1019
  4. 3.96 x 107
If 54x7 is divided by 6x2 then answer will be
  1. 9x9
  2. 9x5
  3. 5x9
  4. 6x9
By solving following (16a14 x (3a4 ⁄3a5 answer will be
  1. 16a13
  2. 16a10
  3. 16a6
  4. 13a16
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