Find the Composition $f ( x ) = x ^ { 2 } + 2 x$

question 12

Multiple Choice

Find the composition.
-If $f ( x ) = x ^ { 2 } + 2 x$ and $g ( x ) = x + 4$ , find $( f \circ g ) ( 4 )$

• A) 0
• B) \(2 \sqrt { 3 }\)
• C) 28
• D) 80