11 - Adding and Subtracting Polynomials, Part 1 (Combining Like Terms)

In this lesson, we will discuss how to add and subtract polynomials in algebra by solving example problems.

First, we learn how to identify like terms and learn how to combine like terms in an algebraic expression that involves polynomials. Next we simplify the expression by adding the coefficients of like terms. Finally, we solve numerous examples to give plenty of practice.

[damiancastro]

YES I FINALLY UNDERSTOOD IT, dude my teacher just gave us the workbook and didnt even explain it to use personally. but this was so much easier than i anticipated. even ai couldn't explain this but finally this worked. you didnt just assume i knew all the steps and i love it

[jacquelinesmith]

You are such a great teacher, I wish you were my teacher growing up. Unlike some of the other youtube instructors your voice is not annoying but very soothing and understandable. Thanks so much for doing this. I have a pre nursing exam coming up and I'm trying to review algebra, you have definitely helped.

[zhrmtv]

Your such a good teacher and explainer I really really understand your explanation

[XxXK]

wonderful short and quick lesson sir !

[ninamarie]

I love it how you did all the steps and you explained it first

[liss-sanedrac]

Thanks you, this was really helpful bc my algebra book hardly gave me instructions and I was so confused

[aynahjoy]

I wish you were my teacher in real life.thank you so much!!

[andreinapichardo]

Thank you so much been looking for an example like these for ever and found you!! Thank you so much!!

[shalmarichter]

This is helpful, and I like the way you explain everything. Do you have videos with fractions and percentages? Thank you!

[farahmohammed]

Wish all teachers could teach like you.

[graememudie]

As with the t you should put tails on the. X so as not to confuse it with the multiplication symbol.

[m-do]

4:07 isn’t it supposed to be +7?
Because negative + negative is positive

[georgeseese]

In a math forum, several say that it doesn't make a difference how you sort the terms; it's a personal preference. For example, when you look for the highest degree, they say you can look for the lowest degree or whatever. Can polynomial operations be performed when there is Not a highest to lowest degree as you say here? Do teachers not expect to see highest to lowest?

[Abbababy.]

I don’t have money to buy your course I wish I could 😢

[angelasy]

Where did you get a negative one from? I got lost right there lol

[XxXK]

for the problem at 13:58 i got the answer right, however i put -4x-x2squared. does the order matter ?