### Home > INT2 > Chapter 9 > Lesson 9.4.1 > Problem 9-135

9-135.

If and

*, write each of the following functions:*

In this case, we are adding the two functions together. Add together the like terms and rewrite the new function.

In this we are subtracting the given functions from one another. Look for like terms and simplify.

Refer to part (b). This time, we are subtracting functions in the reversed order.