Find the Sum or Difference $$( x + 1 ) ( 3 x + 6 )$$

Multiple Choice

Find the sum or difference.
- $$( x + 1 ) ( 3 x + 6 )$$

A) $3 x ^ { 2 } + 6 x + 9$
B) $3 x ^ { 2 } + 9 x + 6$
C) $x ^ { 2 } + 9 x + 9$
D) $3 x ^ { 2 } + 8 x + 6$