document.write( "Question 178842: x^2-5x+4
\n" ); document.write( "--------
\n" ); document.write( "x^2-1\r
\n" ); document.write( "\n" ); document.write( "times \r
\n" ); document.write( "\n" ); document.write( "x^2+5x+4
\n" ); document.write( "--------
\n" ); document.write( "x^2-9\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "hi i need to simplify this and list any restrictions that there are.
\n" ); document.write( "please helppp.
\n" ); document.write( "thank you so much. \n" ); document.write( "
Algebra.Com's Answer #133797 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "\n" ); document.write( "\"%28%28x%5E2-5x%2B4%29%2F%28x%5E2-1%29%29%28%28x%5E2%2B5x%2B4%29%2F%28x%5E2-9%29%29\" Start with the given expression.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28%28%28x-1%29%28x-4%29%29%2F%28x%5E2-1%29%29%28%28x%5E2%2B5x%2B4%29%2F%28x%5E2-9%29%29\" Factor \"x%5E2-5x%2B4\" to get \"%28x-1%29%28x-4%29\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Factor \"x%5E2-1\" to get \"%28x-1%29%28x%2B1%29\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Factor \"x%5E2%2B5x%2B4\" to get \"%28x%2B4%29%28x%2B1%29\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Factor \"x%5E2-9\" to get \"%28x-3%29%28x%2B3%29\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Combine the fractions. \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Highlight the common terms. \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Cancel out the common terms. \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28%28x-4%29%28x%2B4%29%29%2F%28%28x-3%29%28x%2B3%29%29\" Simplify. \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2-16%29%2F%28x%5E2-9%29\" FOIL\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So \"%28%28x%5E2-5x%2B4%29%2F%28x%5E2-1%29%29%28%28x%5E2%2B5x%2B4%29%2F%28x%5E2-9%29%29\" simplifies to \"%28x%5E2-16%29%2F%28x%5E2-9%29\".\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "In other words, where \"x%3C%3E-3\", \"x%3C%3E-1\", \"x%3C%3E1\", or \"x%3C%3E3\" (these are the restrictions)
\n" ); document.write( " \n" ); document.write( "
\n" );