document.write( "Question 207302: I was wondering if you could please help me. The problem is find all numbers for which the rational expression is undefined, (11/17w).I believe you multiply the top and bottom by 17w which would be (187w/17w^2) and square them.But I'm not sure is tht the correct answer? Thank you inadvance for your time. \n" ); document.write( "
Algebra.Com's Answer #156739 by Edwin McCravy(20060)\"\" \"About 
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I was wondering if you could please help me. The problem is find all numbers for which the rational expression is undefined, (11/17w).I believe you multiply the top and bottom by 17w which would be (187w/17w^2) and square them.But I'm not sure is tht the correct answer? Thank you inadvance for your time.
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document.write( "No, you don't do that at all! You use the fact that\r\n" );
document.write( "an expression is undefined when the denominator equals\r\n" );
document.write( "to zero.  So all you do is make the equation\r\n" );
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document.write( "\"DENOMINATOR=0\"\r\n" );
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document.write( "The denominator of \"11%2F%2817w%29\" is \"17w\", so we make\r\n" );
document.write( "the equation\r\n" );
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document.write( "\"17w=0\"\r\n" );
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document.write( "Divide both sides by 17\r\n" );
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document.write( "\"17w%2F17=0%2F17\"\r\n" );
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document.write( "\"cross%2817%29w%2Fcross%2817%29=0\"\r\n" );
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document.write( "\"w=0\"\r\n" );
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document.write( "So the only number \"w\" for which \"11%2F%2817w%29\" is\r\n" );
document.write( "undefined is when w is \"0\".\r\n" );
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document.write( "You might ask, \"What happens to the numerator, 11?\"\r\n" );
document.write( "You simply ignore the numerator because it is only\r\n" );
document.write( "the denominator equaling zero that causes the expression\r\n" );
document.write( "to be undefined.\r\n" );
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document.write( "Edwin

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