Write the Domain in Interval Notation $$r ( x ) = x ^ { 2 } + 2 x - 35$$

Multiple Choice

Write the domain in interval notation.
- $$r ( x ) = x ^ { 2 } + 2 x - 35$$

A) $( - \infty , - 8 ) \cup ( - 8 , \infty )$
B) $( - \infty , - 7 ) \cup ( - 7,5 ) \cup ( 5 , \infty )$
C) $( - \infty , - 5 ) \cup ( - 5,7 ) \cup ( 7 , \infty )$
D) $( - \infty , \infty )$