Find $f \circ g$ $f ( x ) = x + 3 \quad g ( x ) = \frac { 4 } { x ^ { 2 } - 9 }$

question 38

Multiple Choice

Find $f \circ g$ .
$f ( x ) = x + 3 \quad g ( x ) = \frac { 4 } { x ^ { 2 } - 9 }$

• A) \(( f \circ g ) ( x ) = \frac { 4 } { x ^ { 2 } }\)
• B) \(( f \circ g ) ( x ) = \frac { 4 } { x ^ { 2 } + 6 x }\)
• C) \(( f \circ g ) ( x ) = \frac { 3 x ^ { 2 } + 1 } { x ^ { 2 } - 9 }\)
• D) \(( f \circ g ) ( x ) = \frac { 7 } { x ^ { 2 } - 9 }\)
• E) \(( f \circ g ) ( x ) = \frac { 3 x ^ { 2 } - 23 } { x ^ { 2 } - 9 }\)

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