document.write( "Question 851880: Please provide in interval notation: x3+9x2-108>=0 \n" ); document.write( "
Algebra.Com's Answer #525315 by tommyt3rd(5050)\"\" \"About 
You can put this solution on YOUR website!
factors to \"%28x-3%29%2A%28x%2B6%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "so we check the intervals\r
\n" ); document.write( "\n" ); document.write( "[-oo, -6]
\n" ); document.write( "(+)(-) so negative except at x=-6\r
\n" ); document.write( "\n" ); document.write( "[-6, 3]
\n" ); document.write( "(-)(+) so negative except at x=-6 and x=3\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "[3,oo]
\n" ); document.write( "(+)(+) positive\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "solution:\r
\n" ); document.write( "\n" ); document.write( "{-6} U [3, oo)\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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