document.write( "Question 161157: 2power of x + 8(2power of x)=9 \n" ); document.write( "

Algebra.Com's Answer #118702 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"2%5Ex%2B8%282%5Ex%29=9\"$
\n" ); document.write( "Let $\"u=2%5Ex\"$
\n" ); document.write( " $\"u%2B8u=9\"$
\n" ); document.write( " $\"9u=9\"$
\n" ); document.write( " $\"u=1\"$
\n" ); document.write( " $\"2%5Ex=1\"$
\n" ); document.write( " $\"x=log%282%2C1%29\"$
\n" ); document.write( " $\"highlight%28x=0%29\"$
\n" ); document.write( "Check your answer.
\n" ); document.write( " $\"2%5E0%2B8%282%5E0%29=9\"$
\n" ); document.write( " $\"1%2B8%281%29=9\"$
\n" ); document.write( " $\"9=9\"$
\n" ); document.write( "Ture statement.
\n" ); document.write( "Good answer. \n" ); document.write( "

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