document.write( "Question 1128505: 12^(x+2)=72 \n" ); document.write( "

Algebra.Com's Answer #744971 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"12%5E%28%28x%2B2%29%29=72+\"$
\n" ); document.write( "using common logs
\n" ); document.write( " $\"log%2812%5E%28%28x%2B2%29%29%29=log%2872%29+\"$
\n" ); document.write( "log equiv of exponents
\n" ); document.write( "(x+2)log(12) = log(72)
\n" ); document.write( "x + 2 = $\"log%2872%29%2Flog%2812%29\"$
\n" ); document.write( "use your calc
\n" ); document.write( "x + 2 = 1.721
\n" ); document.write( "x = 1.721 - 2
\n" ); document.write( "x = -.279
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Confirm with your calc enter 12^(-.279+2) ~ 72.0 \n" ); document.write( "

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