Solving Polynomial Inequalities

Solving Quadratic Inequalities with Unknown Coefficients

[Desiprideallday]

You teach better than my teacher... You have a burst of energy throughout and i think that helps us, the viewers, catch on better. Yes, you also clean the board perfectly and have good handwriting lol. You are also a pretty funny person! Anyways keep it up! It still boggles me that you and some of these other tutors/teachers on YouTube are doing this without asking for anything in return. I can't thank you enough and also can't even count how many tests/quizzes you have saved me from :)

[profrobbob]

Listen to you…advance study…you're the kind of student that makes a teacher proud! Keep up those great study skills and I promise the rewards will always pay off! And thanks for watching and keep watching…practice makes perfect they say:)

[profrobbob]

Yeaaaa...I'm glad you enjoyed my attempt at humor:) And thank you for the positive comment. Be sure to share my channel with your friends if you like it...thanks

[profrobbob]

Another #math  lesson Closed Captioned.  Solving Polynomial Inequalities.

[djdailyxo]

This professor is truly gifted at teaching! I sat 8 hours in a classroom, and watched hours of other polynomial inequality videos, and didn't learn as much as I did watching the first 8 minutes of this video! He is very clear, and specific in his teaching method. I wish I would have been able to have taken him for pre-calc.

Thank you for the helpful video.

[profrobbob]

Thanks for watching till the end!
This was one of my early videos wen I had a 15min. time limit...it was hard to squeeze it all in sometimes:D

[XSilverful]

Omg, this is SO much simpler than the sign chart method. Thank you so much! I'm totally cramming for a test in a few hours but with this method bring it on!

[profrobbob]

You're welcome! Most math teachers have a very time consuming, sometimes frustrating job...don't be too hard on your professor...at least you found the extra help you needed:)

[profrobbob]

You are SO welcome...and thank you for watching and subscribing to my channel too:)
I hope you continue to watch and learn and please share my channel with your friends, my growth is through my subscribers spreading the word. Thanks

[profrobbob]

You can test any value you like within each interval. In your question, set it equal to zero...factor x^2 out and set each factor equal to zero to determine your test intervals.

[profrobbob]

THANK YOU Erick! And thanks for supporting by watching, sharing, liking and subscribing...that kind of support is what helps my channel groW!

[profrobbob]

You are very special too!!! Thank you for watching and the nice comment. I hope I can continue to help you with your math studies:)

[profrobbob]

Glad I could help. Thank you for watching:)

[profrobbob]

You could watch Graphing Non-Linear Inequalities. You basically graph the polynomial and then test one point in each region of your graph to see if you get a true statement from your inequality. You shade in the area that gives a true statement.

[profrobbob]

You are welcome...and thank you for finding me entertaining enough to watch and learn from...I hope you continue to be entertained and keep watching and sharing your enthusiasm with your friends:D

[profrobbob]

You're welcome...I hope you will return for more learning from ProfRobBob and be sure to share with your friends and classmates and remind them to support and subscribe because that's how I groW!

[profrobbob]

Very good suggestion for anyone who also just learned about graphing higher order polynomials. You will also want to consider the multiplicity of the roots to know if the graph just touches that x-intercept or goes through it:)

[profrobbob]

Want to always make sure that I am starting with a captive audience:)) Thank you for watching and PS...loved the Yiruma vids you shared:)

[clari]

god i love the internet! this video saved my life, i was having such a hard time with polynomials thanks a bunch!

[profrobbob]

Thank you for watching and the kind words:) Please help me by spreading the word.