4b+Polynomials+including+multiplying,+adding,+subtracting

[|Adding, subtracting and multiplying polynomials] [|How to add, subtract, and multiply polynomials - explanations]

Sample Problems:

Adding Polynomials -  (7//x//2 – //x// – 4) + (//x//2 – 2//x// – 3) + (–2//x//2 + 3//x// + 5) = 7//x//2 – //x// – 4 + //x//2 – 2//x// – 3 + –2//x//2 + 3//x// + 5 = 7//x//2 +  **1**   //x//2 – 2//x//2 –   **1**   //x// – 2//x// + 3//x// – 4 – 3 + 5 = 8//x//2 – 2//x//2 – 3//x// + 3//x// – 7 + 5 =  **6//x//2 – 2** **Subtracting Polynomials - **    **  (6//x//3 – 2//x//2 + 8//x//) – (4//x//3 – 11//x// + 10) = (6//x//3 – 2//x//2 + 8//x//) –  **1**   (4//x//3 – 11//x// + 10) = (6//x//3 – 2//x//2 + 8//x//) –  **1**   (4//x//3) –   **1**   (–11//x//) –   **1**   (10) = 6//x//3 – 2//x//2 + 8//x// – 4//x//3 + 11//x// – 10 = 6//x//3 – 4//x//3 – 2//x//2 + 8//x// + 11//x// – 10 =  **2//x//3 – 2//x//2 + 19//x// – 10** **         **Multiplying Polynomials - **    (   //x//   +   3   )(   //x//   +   2   ) = (  //x//   +   3   )(   //x//   ) + (   //x//   +   3   )(   2   ) =  //x//   (   //x//   ) +   3   (   //x//   ) +   //x//   (   2   ) +   3   (   2   ) = //x//2 + 3//x// + 2//x// + 6 =  **//x//2 + 5//x// + 6**