document.write( "Question 1067887: log(1-x)- Log(2+x)=2 \n" ); document.write( "

Algebra.Com's Answer #683071 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+log%28%28+1-x+%29%29+-+log%28%28+2%2Bx+%29%29+=+2+\"$
\n" ); document.write( "I assume the base of the logs is $\"+10+\"$
\n" ); document.write( "Use the substitution $\"+2+=+log%28+100+%29+\"$
\n" ); document.write( " $\"+log%28+%28%281-x%29%2F%282%2Bx%29%29+%29+=+log%28100%29+\"$
\n" ); document.write( " $\"+%28+1-x+%29%2F%28+2%2Bx+%29+=+100+\"$
\n" ); document.write( " $\"+1+-+x+=+100%2A%28+2%2Bx+%29+\"$
\n" ); document.write( " $\"+1+-+x+=+200+%2B+100x+\"$
\n" ); document.write( " $\"+101x+=+-199+\"$
\n" ); document.write( " $\"+x+=+-1.970297+\"$
\n" ); document.write( "---------------------
\n" ); document.write( "check answer:
\n" ); document.write( " $\"+log%28%28+1-x+%29%29+-+log%28%28+2%2Bx+%29%29+=+2+\"$
\n" ); document.write( " $\"+log%28%28+1-%28-1.970297+%29%29+-+log%28%28+2%2B1.970297+%29%29%29+=+2+\"$
\n" ); document.write( " $\"+log%28%28+2.970297+%29%29+-+log%28%28+.02970297+%29%29+=+log%28%28+100+%29%29+\"$
\n" ); document.write( " $\"+log%28%28+2.970297%2F.02970297+%29%29+=+log%28%28+100+%29%29+\"$
\n" ); document.write( " $\"+log%28%28+99.99999899+%29%29+=+log%28%28+100+%29%29+\"$
\n" ); document.write( "OK
\n" ); document.write( "Get another opinion if needed
\n" ); document.write( " \n" ); document.write( "

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