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Question

Evaluate the exponential expression x5 × x4, for x = 2.


  1. 256

  2. 512

  3. 32

  4. 128


Solution

The correct option is B

512


x5 × x4, for x = 2
Substituting 2 in place of x
= 25× 24
= 29   (am×an=am+n) = 512

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