Find the Domain of the Rational Function $$f ( x ) = \frac { x ^ { 2 } - 49 } { x ^ { 2 } - 13 x + 40 }$$

question 164

Multiple Choice

Find the domain of the rational function.
- $$f ( x ) = \frac { x ^ { 2 } - 49 } { x ^ { 2 } - 13 x + 40 }$$

• A) \(\{ x \mid x\) is a real number and \(x \neq - 5 , x \neq - 8 \}\)
• B) \(\{ x \mid x\) is a real number and \(x \neq 5 , x \neq 8 \}\)
• C) \(\{ x \mid x\) is a real number and \(x \neq 7 , x \neq - 7 \}\)
• D) \(\{ x \mid x\) is a real number and \(x \neq 0 \}\)