document.write( "Question 548913: how do i solve: log (base 2) 8^x = -3 \n" ); document.write( "

Algebra.Com's Answer #357277 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Get log base 2 on both sides of equation
\n" ); document.write( "Note that $\"+-3+=+log%282%2C+1%2F8%29+\"$ , so
\n" ); document.write( " $\"+log%282%2C+8%5Ex%29+=+log%282%2C+1%2F8%29+\"$ , therefore
\n" ); document.write( " $\"+8%5Ex+=+1%2F8+\"$
\n" ); document.write( " $\"+8%5Ex+=+8%5E-1+\"$
\n" ); document.write( " $\"+x+=+-1+\"$ \n" ); document.write( "

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