document.write( "Question 990682: log4 x^2-log4 (x-1)=1 \n" ); document.write( "

Algebra.Com's Answer #610665 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Use the substitution:
\n" ); document.write( " $\"+1+=+log%28+4%2C4+%29+\"$
\n" ); document.write( "------------------
\n" ); document.write( " $\"+log%28+4%2Cx%5E2+%29+-+log%28+4%2Cx-1+%29+=+log%28+4%2C4+%29+\"$
\n" ); document.write( " $\"+log%28+4%2C+x%5E2%2F%28x-1%29+%29+=+log%28+4%2C4+%29+\"$
\n" ); document.write( " $\"+x%5E2%2F%28+x-1+%29+=+4+\"$
\n" ); document.write( " $\"+x%5E2+=+4x+-+4+\"$
\n" ); document.write( " $\"+x%5E2+-+4x+%2B+4+=+0+\"$
\n" ); document.write( " $\"+%28+x+-+2+%29%5E2+=+0+\"$
\n" ); document.write( " $\"+x+=+2+\"$
\n" ); document.write( "------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+log%28+4%2Cx%5E2+%29+-+log%28+4%2Cx-1+%29+=+1+\"$
\n" ); document.write( " $\"+log%28+4%2C2%5E2+%29+-+log%28+4%2C2-1+%29+=+1+\"$
\n" ); document.write( " $\"+log%28+4%2C4+%29+-+log%28+4%2C1+%29+=+1%0D%0A%7B%7B%7B+1+-+0+=+1+\"$
\n" ); document.write( "OK \n" ); document.write( "

\n" );