Finding all the Zeros of a Polynomial - Example 2

Finding all the Zeros of a Polynomial - Example 2. In this video, I use the rational roots test to find all possible rational roots; after finding one I use long division to factor, and then repeat! Very fun!

Category:

Education

Tags:

• math
• algebra
• zero
• root
• solution
• find
• finding
• austin
• polynomial
• remainder
• theorem
• factor
• long
• synthetic
• division
• educational
• tutorial
• instructional video

[MicNarcolepsy]

Patrick what textbooks do you use to teach? Your videos and their examples are nearly similar to everything I have. Thanks for the vids, keep it up! :)

[patrickJMT]

@MicNarcolepsy i have a ton, but i use stewart and larson a lot for calculus. i used stewart's book in the past as a student and when i taught in the classroom

[megametalpriest]

Patrick there has to be a shortcut for this because on a test I can't try all 15 factors of a number...

[patrickJMT]

@megametalpriest let me know when you find it, i would also like to know.

[RarwAshleyPersonal]

This would be so much easier if when you had to find the zeros, you wouldn't have to go through 20 possible rational roots

[patrickJMT]

@RarwAshleyPersonal loool

[CHANNELx7xGAMING]

I like the fact that there's no dislikes

[patrickJMT]

@91alizzle glad they have been of some use to u : )

[Idj3]

I love you.

[MaritzzzzGlam03]

you are amazing! I understand it now!!!!

[checkit631]

@megametalpriest

Descartes rule of signs and "Upper bound/Lower bound" would help a lot to eliminate possibilities. Especially when dealing with really high degrees

[AzzK1KR69]

@CHANNELx7xGAMING i just disliked it.....

[engysamad1]

Patrick you are great teacher.I would like to ask you how i use calculatour to find rational zero insted of trying all factors.and is important to use calculator or work out mentally is enough ?Thanks

[Zyzxx1172]

this is a great video. youtube being full of people like you, allows me to attend afterschool school!