Let $f ( x ) = 2 x + 1$ And $g ( x ) = x - 3$

Multiple Choice

Let $f ( x ) = 2 x + 1$ and $g ( x ) = x - 3$ . Find the function $f g$ .

A) $2 x ^ { 2 } - 6 x - 3$
B) $2 x ^ { 2 } + 5 x - 3$
C) $3 x ^ { 2 } - 6 x - 2$
D) $2 x ^ { 2 } - 5 x - 3$
E) $2 x ^ { 2 } + 6 x - 3$