Rational Expressions
1 Specify Numbers That Must Be Excluded from the Domain of a Rational Expression
-$$\frac { x + 8 } { x ^ { 2 } - 14 x + 48 }$$

Name: Rational Expressions 1 Specify Numbers That Must Be Excluded from the Domain of a Rational Expression -\[\frac { x + 8 } { x ^ { 2 } - 14 x + 48 }\]
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Question

Quizplus · Accepted Answer

The denominator $x^2 - 14x + 48$ factors to $(x - 6)(x - 8)$. The values that make the denominator zero, and thus must be excluded from the domain, are $x = 6$ and $x = 8$.