document.write( "Question 862736: 2log(x+1)-log(x-1)=log(x+4) \n" ); document.write( "

Algebra.Com's Answer #519912 by lwsshak3(11628) $\"\"$ $\"About$

You can put this solution on YOUR website!
2log(x+1)-log(x-1)=log(x+4)
\n" ); document.write( "solve for x:
\n" ); document.write( " $\"2log%28%28x%2B1%29%29-log%28%28x-1%29%29=log%28%28x%2B4%29%29\"$
\n" ); document.write( " $\"log%28%28%28x%2B1%29%5E2%2F%28x-1%29%29%29=log%28%28x%2B4%29%29\"$
\n" ); document.write( " $\"%28x%2B1%29%5E2%2F%28x-1%29=%28x%2B4%29\"$
\n" ); document.write( "(x-1)^2=(x-1)(x+4)
\n" ); document.write( "x^2-2x+1=x^2+3x-4
\n" ); document.write( "x=5 \n" ); document.write( "

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