document.write( "Question 301811: list all numbers for which the rational expression is undefined:\r
\n" ); document.write( "\n" ); document.write( "a-4/3a-12
\n" ); document.write( "

Algebra.Com's Answer #216428 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
If it is 4 over 3a then a cannot be zero
\n" ); document.write( "otherwise there are no numbers which make the expression undefined
\n" ); document.write( "
\n" );