Adding and Subtracting Polynomials

Explaination of How Adding Polynomials works-
http://www.brightstorm.com/math/algebra/polynomials-2/adding-and-subtracting-polynomials/

First Problem of Addition-
http://www.brightstorm.com/math/algebra/polynomials-2/adding-and-subtracting-polynomials-problem-1/

Second Problem of Addition-
http://www.brightstorm.com/math/algebra/polynomials-2/adding-and-subtracting-polynomials-problem-2/

Third Problem of Subtraction-
http://www.brightstorm.com/math/algebra/polynomials-2/adding-and-subtracting-polynomials-problem-3/