Perform the Indicated Operation $$( 6 + 5 i ) ( 6 - 5 i )$$

Multiple Choice

Perform the indicated operation. Write the result in the form a + bi.
- $$( 6 + 5 i ) ( 6 - 5 i )$$

A) 11
B) $36 - 25 \mathrm { i } ^ { 2 }$
C) $36 - 25 \mathrm { i }$
D) 61