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17 December, 16:53

In problems 1 and 2 let f (x) = 3x + 2 and g (x) = x-3

Problem 1

Find f (x) + g (x)

Problem 2

Evaluate f (-1) + g (-1)

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Answers (1)
  1. 17 December, 17:15
    0
    In this question, we're solving the expressions.

    Problem 1:

    For problem 1, f (x) + g (x) means that we're combining both of the equations together by adding.

    Solve:

    3x + 2 + x - 3

    Combine like terms:

    4x + 2 - 3

    Answer to problem 1: 4x - 1

    Problem 2:

    In this problem, you're getting both of the expressions and combining them; however, you would need to plug in - 1 to the x variable in both of the expressions.

    Your problem should look like this:

    3 (-1) + 2 - 1 - 3

    Solve:

    3 (-1) + 2 - 1 - 3

    -3 + 2 - 1 - 3

    -1 - 1 - 3

    -2 - 3

    -5

    Answer to problem 2: - 5
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