document.write( "Question 201507: Question: Solve log(subscript 2)(x)+log(subscript2)(x+2)=3. \n" ); document.write( "

Algebra.Com's Answer #151710 by nerdybill(7384) $\"\"$ $\"About$

You can put this solution on YOUR website!
Apply log rules:
\n" ); document.write( " $\"log%282%2Cx%29%2Blog%282%2C%28x%2B2%29%29=3\"$
\n" ); document.write( " $\"log%282%2Cx%28x%2B2%29%29=3\"$
\n" ); document.write( " $\"x%28x%2B2%29=+2%5E3\"$
\n" ); document.write( " $\"x%5E2%2B2x=+8\"$
\n" ); document.write( " $\"x%5E2%2B2x-8=0\"$
\n" ); document.write( " $\"%28x%2B4%29%28x-2%29=0\"$
\n" ); document.write( ".
\n" ); document.write( "x = {-4, 2}
\n" ); document.write( "We can throw out the negative solution leaving:
\n" ); document.write( "x = {2}
\n" ); document.write( " \n" ); document.write( "

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