Simplifying Polynomials is often hard to remember when you are first learning the steps. Here is a great resource that gives 3-steps to follow when Simplifying Polynomials. Its great for notes as well, but most importantly its free!
Paired great with Simplifying Polynomials Task Cards located here: https://www.teacherspayteachers.com/Product/Task-Cards-Simplify-Polynomials-3060474
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