Polynomials are expressions such as 4x³+2x²+9x+4.

Adding Polynomials is a very simple concept

as long as you know the rules to adding them.

A typical Polynomial Addition Problem would look something like:

(2x²+3x+7) + (6x²+10x+1) = ?

When you add Polynomial equations

you can only add the numbers together

that have the same variables after the number.

For example, you could not add 5x² and 4x together.

BUT… you could add 5x² and 4x² together.

So, in the problem a few lines up, you could only add the 2x² to the 6x²

and only the 3x to the 10x

and only the 7 to the 1,

because they all have the same signs following the number.

So, the answer to the problem would be (8x²+13x+8).

This concept is called the adding of "like terms."

Follow that simple rule and adding polynomials is very easy.