Simplify the sum:

Multiply the binomial.
Use Distributive Property.
Factor the polynomial.
Enter only a simplified expression.
Factor the polynomial.
Enter only a simplified expression.
Find the product.
Be sure to write your answer with the terms decreasing in degree from left to right.
Find the product.
Be sure to write your answer with the terms decreasing in degree from left to right.
Find the product.
Be sure to write your answer with the terms decreasing in degree from left to right.