document.write( "Question 734068: Please help me solve this problem:
\n" ); document.write( "log2 x+ log2 (x+2)-log2 3=4 \n" ); document.write( "

Algebra.Com's Answer #448710 by lwsshak3(11628) $\"\"$ $\"About$

You can put this solution on YOUR website!
Please help me solve this problem:
\n" ); document.write( " $\"log%282%2C%28x%29%29%2Blog%282%2C%28x%2B2%29%29-log%282%2C%283%29%29=4\"$
\n" ); document.write( "log2[x(x+2)/3]=4
\n" ); document.write( "log2[x(x+2)/3]=log2(16)
\n" ); document.write( "x(x+2)/3=16
\n" ); document.write( "x^2+2x=48
\n" ); document.write( "x^2+2x-48=0
\n" ); document.write( "(x+8)(x-6)=0
\n" ); document.write( "x=-8 (reject, (x+2)>0)
\n" ); document.write( "or
\n" ); document.write( "x=6 \n" ); document.write( "

\n" );