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Question


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


Options:
A .   32
B .   128
C .   256
D .   512
Answer: Option D
:
D

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



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