document.write( "Question 97705: HELP Please!!!!! How many values do they want and what would they be?\r
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document.write( "What values for x must be excluded in the following fraction?
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document.write( "(x+5)/-1\r
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document.write( "THANKS!! :o) \n" );
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Algebra.Com's Answer #71086 by tutorcecilia(2152)![]() ![]() You can put this solution on YOUR website! (x+5)/-1 \n" ); document.write( "In this case, no real numbers need to be excluded. \n" ); document.write( "The question is asking, what real number(s) will make this an untrue statement. The answer is \"none\" because all real numbers can be included. There are no exceptions. \n" ); document.write( "For example, pick any real number and substitute it for \"x\", you will always get a real number as the answer: \n" ); document.write( "(x+5)/-1 \n" ); document.write( "Let x=0 \n" ); document.write( "Than \n" ); document.write( "(0+5)/-1=5/-1=-5\r \n" ); document.write( "\n" ); document.write( ". \n" ); document.write( "Try x=-2 \n" ); document.write( "Than (-2+5)/-1=3/-1=-3 \n" ); document.write( ". \n" ); document.write( "Try x= -5 \n" ); document.write( "(-5+5)/-1=0/-1=0. It is OK to have zero in the numerator, but not in the denominator (an undefined condition) \n" ); document.write( ". \n" ); document.write( "But, if you get a problem such as: \n" ); document.write( "-1/(x+5), than x can equal all real numbers EXCEPT FOR (-5). Why? Because: \n" ); document.write( "-1/(-5+5)=-1/0=undefined. You cannot divide by zero. \n" ); document.write( " |