Question 601904
{{{ 7* log( 4, x ) + 5* log( 4 , y ) − 7* log( 4, z ) }}}
{{{ log( 4, x^7) + log( 4, y^5 ) - log( 4, z^7 ) }}}
{{{ log( 4, (( x^7*y^5 ) / z^7 )) }}}