For the Given Functions F and G, Find the Requested $\begin{array} { l } f ( x ) = x + 6 ; g ( x ) = 3 x ^ { 2 } \\ { Find } f + g\end{array}$

question 198

Multiple Choice

For the given functions f and g, find the requested function and state its domain.
- $\begin{array} { l } f ( x ) = x + 6 ; g ( x ) = 3 x ^ { 2 } \\ { Find } f + g\end{array}$

• A) \(( f + g ) ( x ) = - 3 x ^ { 2 } + x + 6\); all real numbers
• B) \(( f + g ) ( x ) = 3 x ^ { 2 } - x - 6 ;\) all real numbers
• C) \(( f + g ) ( x ) = 3 x ^ { 2 } + x + 6 ; \{ x \mid x \neq - 6 \}\)
• D) \(( f + g ) ( x ) = 3 x ^ { 2 } + x + 6\); all real numbers

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