SOLUTION: For Problems 5-7, use f(x) = x³-3 and g(x) = 2x 5. Find (f+g)(x). 6. Evaluate f(4) and g(4). 7. Evaluate (f+g)(4).

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: For Problems 5-7, use f(x) = x³-3 and g(x) = 2x 5. Find (f+g)(x). 6. Evaluate f(4) and g(4). 7. Evaluate (f+g)(4).      Log On

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Question 1208334: For Problems 5-7, use f(x) = x³-3 and g(x) = 2x
5. Find (f+g)(x).
6. Evaluate f(4) and g(4).
7. Evaluate (f+g)(4).
Found 2 solutions by josgarithmetic, math_tutor2020:
Answer by josgarithmetic(39627) About Me  (Show Source):
You can put this solution on YOUR website!
Really just a matter of knowing the notation, substituting, and simplification.

Answer by math_tutor2020(3817) About Me  (Show Source):