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Can this expression be simplified further? How?

[2^(a+1) - 2^(a-1)] / 2^a
in Mathematics by Diamond (39,246 points) | 33 views

1 Answer

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Let me try it,

[2^(a+1) - 2^(a-1)] / 2^a

= [2^a x 2^1 - 2^a x 2^-1] / 2^a, then factor out 2^a

= 2^a[2^1 - 2^-1] / 2^a

= [2^1 - 2^-1]

= 2 - 1/2

= 1 1/2 , yes it can be simplified till here.
by Diamond (42,470 points)

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