Answer:
Your first step is to change the subtraction problem to an addition problem. Then you add, just as you did in the adding polynomials lesson. Let's take a look at an example. Once we change this problem to an addition problem, we will use the horizontal method for solving.
Step-by-step explanation:
You add polynomials when there are plus signs. You subtract them when there is a minus sign. Remember to only add/subtract like terms within the polynomials.
