document.write( "Question 319187: Simplify the expression. Do not use negative exponents in the answer.\r
\n" ); document.write( "\n" ); document.write( "9y -6y4 \r
\n" ); document.write( "\n" ); document.write( "I try this but I end up with a negative number in my answer. How do I solve this problem?
\n" ); document.write( "

Algebra.Com's Answer #228534 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\"9y%5E%28-6%29y%5E4=%289y%5E4%29%2F%28y%5E6%29=9y%5E%284-6%29=9y%5E%28-2%29=9%2F%28y%5E2%29\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "This means that \"9y%5E%28-6%29y%5E4=9%2F%28y%5E2%29\"
\n" ); document.write( "
\n" );