document.write( "Question 187784This question is from textbook college mathematics 1
\n" ); document.write( ": y^2-4y-5/y^2+5y+4 \n" ); document.write( "
Algebra.Com's Answer #140788 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "\n" ); document.write( "\"%28y%5E2-4y-5%29%2F%28y%5E2%2B5y%2B4%29\" Start with the given expression.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28%28y%2B1%29%28y-5%29%29%2F%28y%5E2%2B5y%2B4%29\" Factor \"y%5E2-4y-5\" to get \"%28y%2B1%29%28y-5%29\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28%28y%2B1%29%28y-5%29%29%2F%28%28y%2B4%29%28y%2B1%29%29\" Factor \"y%5E2%2B5y%2B4\" to get \"%28y%2B4%29%28y%2B1%29\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28highlight%28%28y%2B1%29%29%28y-5%29%29%2F%28%28y%2B4%29highlight%28%28y%2B1%29%29%29\" Highlight the common terms. \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28cross%28%28y%2B1%29%29%28y-5%29%29%2F%28%28y%2B4%29cross%28%28y%2B1%29%29%29\" Cancel out the common terms. \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28y-5%29%2F%28y%2B4%29\" Simplify. \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So \"%28y%5E2-4y-5%29%2F%28y%5E2%2B5y%2B4%29\" simplifies to \"%28y-5%29%2F%28y%2B4%29\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "In other words, \"%28y%5E2-4y-5%29%2F%28y%5E2%2B5y%2B4%29=%28y-5%29%2F%28y%2B4%29\" where \"y%3C%3E-4\" or \"y%3C%3E-1\"
\n" ); document.write( " \n" ); document.write( "
\n" );