Evaluate the Function for the Indicated Value, Then Simplify $f ( x ) = x ^ { 2 } + 5 x$

question 369

Multiple Choice

Evaluate the function for the indicated value, then simplify.
- $f ( x ) = x ^ { 2 } + 5 x$ ; find $f ( a + 1 )$ , then simplify as much as possible.

• A) \(a ^ { 2 } + 7 a + 6\)
• B) \(a ^ { 2 } + 7 a + 7\)
• C) \(a ^ { 2 } + 3 a + 2\)
• D) \(a ^ { 2 } + 3 a + 6\)

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