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)

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