document.write( "Question 761388: If (2^a)(2^b)=128 What is a+b equal to? \n" ); document.write( "

Algebra.Com's Answer #463197 by ramkikk66(644) $\"\"$ $\"About$

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$\"%282%5Ea%29+%2A+%282%5Eb%29+=+2%5E%28a%2Bb%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"2%5E%28a%2Bb%29+=+128\"$ \r
\n" ); document.write( "\n" ); document.write( "But, we know that 128 = 2*2*2*2*2*2*2 (7 times)\r
\n" ); document.write( "\n" ); document.write( "i.e.\r
\n" ); document.write( "\n" ); document.write( " $\"128+=+2%5E7\"$ \r
\n" ); document.write( "\n" ); document.write( "So, a+b = 7\r
\n" ); document.write( "\n" ); document.write( ":) \n" ); document.write( "

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