SOLUTION: If (2^a)(2^b)=128 What is a+b equal to?

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Question 761388: If (2^a)(2^b)=128 What is a+b equal to?
Answer by ramkikk66(644) About Me  (Show Source):
You can put this solution on YOUR website!
%282%5Ea%29+%2A+%282%5Eb%29+=+2%5E%28a%2Bb%29
2%5E%28a%2Bb%29+=+128
But, we know that 128 = 2*2*2*2*2*2*2 (7 times)
i.e.
128+=+2%5E7
So, a+b = 7
:)