document.write( "Question 1006634: Find every value for the variable that makes the expression undefined\r
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Algebra.Com's Answer #622830 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "Find every value for the variable that makes the expression undefined\r
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Set denominator equal to 0
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document.write( "(x + 7)(x  + 4) = 0 ------- Factoring trinomial
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document.write( "x = - 7     OR      x = - 4 ------- Solving for x, after setting each factor equal to 0
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document.write( "Expression is undefined when:  \n" );
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