Question 733986
{{{ log( x ) + log( x^2 - 121 ) - log( 9 ) - log( x-11 ) }}}
{{{ log( x ) + log( ( x+11 )*( x-11 ) ) - log( 9 ) - log( x-11 ) }}}
{{{ log( x ) + log( x+11 ) + log ( x-11 ) - log( 9 ) - log( x-11 ) }}}
{{{ log( x ) + log( x+11 ) - log( 9 ) }}}
{{{ log( ( x^2 + 11x )/9 ) }}}