# Thread: How do I find the sum of polynomials?

1. ## How do I find the sum of polynomials?

(11m^2-2mn+8n^2)+(8m^2+4mn-2n^2)

2. ok. The original problem:

$11m^2-2mn+8n^2+8m^2+4mn-2n^2$

now, you are to combine like terms. This means to combine the terms that have the same variables being multiplied to each other. Look at $11m^2$ you will combine this with $8m^2$ because they both have everything exactly the same, except for the coefficient(the number). so, you will get $19m^2$, and you do this for the whole problem to get:

$19m^2+2mn+6n^2$

YAY

Once again, you are adding and subtracting the numbers that have the same variable ending, simply put.

3. Originally Posted by avshockey
(11m^2-2mn+8n^2)+(8m^2+4mn-2n^2)