SOLUTION: What is the solution to the following two questions? 2^3+2^-1 = ? 3^3+3^3 = ?

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Question 262219: What is the solution to the following two questions?

2^3+2^-1 = ?
3^3+3^3 = ?
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
2%5E3%2B2%5E-1
step 1 - rewrite the negative power as fraction to get
2%5E3+%2B+1%2F2
this is
8+%2B+1%2F2
---
3%5E3%2B3%5E3
rewrite the powers as integers as
27+%2B+27
this is
54