document.write( "Question 61499: If 2^-x = 5, then what does 2^2x equal? Express your answer in exact form. \n" ); document.write( "

Algebra.Com's Answer #42322 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"2%5E%28-x%29+=+5\"$
\n" ); document.write( "take reciprocal of both sides
\n" ); document.write( " $\"2%5E%28%28-x%29%2A%28-1%29%29+=+1%2F5\"$
\n" ); document.write( " $\"2%5Ex+=+1%2F5\"$
\n" ); document.write( " $\"2%5E%282x%29+=+2%5E%28x%2A2%29\"$
\n" ); document.write( " $\"2%5E%28x%2A2%29+=+%281%2F5%29%5E2\"$
\n" ); document.write( " $\"2%5E%28x%2A2%29+=+1%2F25\"$ answer \n" ); document.write( "

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