document.write( "Question 1155244: which of the following expression could be used as a denominator of a rational function without placing any limits on the domain of the function?\r
\n" ); document.write( "\n" ); document.write( "a)2x+3
\n" ); document.write( "b)\sqrt(x^2+5)
\n" ); document.write( "c)x^2-9
\n" ); document.write( "d)x^2-x-6
\n" ); document.write( "e)2,321
\n" ); document.write( "f)none \n" ); document.write( "

Algebra.Com's Answer #777812 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "In my post, I'd like to make correction to the post by @greenestamps.\r
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document.write( "b)  sqrt(x^2+5)  CAN NOT  be the denominator of a rational function.\r\n" );
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document.write( "    Only POLYNOMIAL or a constant term can be.\r\n" );
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document.write( "So, the unique answer to the problem's question is  option  e)  2321.\r\n" );
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