document.write( "Question 85401This question is from textbook Introductrory & Intermediate Algebra for college students
\n" ); document.write( ": problem is to find all numbers for which each rational expression is undefined. If the rational expression is defined for all real numbers, it says, so state.\r
\n" ); document.write( "\n" ); document.write( "x+3 over(x-2)(x+5) \r
\n" ); document.write( "\n" ); document.write( "7 over X^2 + 81 this one is also in fraction form \n" ); document.write( "

Algebra.Com's Answer #61562 by scianci(186) $\"\"$ $\"About$

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Look for the zeros of the denominator. Since it's in factored form, it's easy.
\n" ); document.write( "x - 2 = 0 and x + 5 = 0
\n" ); document.write( "Solving each of these for x will give you the values you need. \n" ); document.write( "

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