Pre-Calculus - Solve a polynomial inequality using a table
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- Опубліковано 15 кві 2013
- This video will describe how to solve a polynomial inequality. A table is used to examine the individual factors and when they are positive or negative. The table allows us to put this information together and see where the overall polynomial is positive or negative. For more videos please visit www.mysecretmathtutor.com
Damn I really spent an hour crying over my textbook example but you sir, are a blessing
thank you so much my teacher can't explain anything
Same!! 😭😓
Wow is this how simple it is? Thanks so much!
Que haces aqui Zico xd
No
this man singlehandedly saved so many confused hons alg 2/pre-calc students from a bad grade on a test
Honestly i love math and i felt soooooo dumb when i didn't get this and my teacher was doing a horrible job explaining this helped so much!!! I also never comment on things... but this was just so helpful thanks a lot !
+andrea michelle melissa Hahahaha same like me! Now it makes > sensible! ^^
OMG sammmmeeee. Everyone else in my class seemed to have gotten it and I was like, "what in the world is happening?!"
But now it totally makes sense!!!
same here i couldn't understand my teacher and i was feeling sad for not knowing how to do it and he saved me from a text tomorrow
You have saved me for my mid-term exams. Never been properly taught these so thank you so much!
Thank you. This really helped. The moderate pacing, repeated examples and clear explanations are a nice quality of your videos.
This is really a relief. I have been struggling with signs and their tables but this explanation made things easier!!!!!
As an adult student, havingto take a College Algebra Plus class online, with an ALEKS component. I so appreciate you explaining this. You gained a subscriber. Thanks so much.
That was perfect, thank you for including a more complex problem towards the end!!
This was the most helpful video ever. With quarantine in place, my teacher gives me video notes (taken herself) and talks through them, but sometimes will not use the notes at all, and if they're poorly explained the book cant help you. Seems like the sign chart was one of those days for her, shes got us testing today and I think I'll do better than if I hadnt watched it. I was wondering why all the factoring was so important with her notes, but I get it now!!!
This was so helpful and clear. Thank you so much!
I love how you teach it sir ! Thank you !
thank you SO SO much from Kazakhstan! we’ve started calculus 2 this year and I saw that I have a problem with simple things such as chart sign, and noticed that my teachers just said basic stuff like “look at the sign of first x and change them as you go”. it could work for simple ones, but I like this method more :)
thank you so much, hope you’re having a good day! you’re wonderful teacher
Very Helpful. My professor taught me how to get to get the box point and how to find out what was positive and what was negative. However, he never explained what to do with all that info to get an answer. Thank you so much!
been trying to figure it out from half an hour. Thanks man.
Thank you so much!T-T I sat for an hour trying to figure this out you are a savor.
This video helped me so much! Im in college pre calc and literally my professor tried multiple times to explain this to me and i NEVER understood each time!!
Thank you so much! This was so helpful for my exam next week. My silly teacher didn't know how to explain this properly, thank god i came across your video 😅
your table is so neat and clear, love it. you should be our professor!
You are such a great teacher! Thank you very much !!!!
THANK YOU! YOU MADE IT SO MUCH EASIER TO UNDERSTAND. I LOVE YOU..
It's so easy to understand watching your video. UGH
Awesome! Thanks, your examples helped me tremendously.
it's a miracle that I found your video few hours before my exam, thank you!
sir you actually helped me a lot through this video, dont know how to thank you!
Best explanation I've found. Thanks.
GOD BLESS YOU. YOU SAVED ME FROM PULLING OUT MY HAIR.
Thank you so much, you have wrinkled my brain back!
Thank you; I’m studying for my first pre-calc midterm tomorrow and I couldn’t grasp this concept. Thank you so much!
you are an awesome teacher. Thanks your helpful video!
This guy deserve a like & subscribe. (I have a math test tomorrow and I don't have any ideas what my lecturer was talking about for 3 hours)
Thanks Jimmy! :^D
This is so good my teacher didn't even bother explaining this thank you for saving my mark
good job. the text books are generally horrendous at trying to explain this!
i really apreciate it man u just helped me a lot for my test
thanks so much sir! no one else would explain this
Never seen someone so precise with a dry erase marker.
My man, your a lifesaver....!
Thanks secret math tutor.I was confused but after watching your video I learned
Thank you, Thank you, Thank you!!! I didn't understand a thing when my teacher explained it, but now it's sooo simple 💙💙💙💙💙💙
Thank you so much this is so helpful!!!
Thank you! This was so helpful
Omg thank you I have an exam tomorrow and it is 12:30AM here. Such a life saver
Thank god for this video, this wasn’t taught in my course and I couldn’t find it anywhere else
Thanks for your maths video.I really understand and I just discover your videos today.👍👍👍👍 Awesome
This was sooo helpful thank you
Thanks for the video! helped a lot!
hero man and a life saver
Hi! Do you include the hole into the interval table? I know it’s not included for the Vertical asymptotes but do you use it in the interval table? Thank you!
You are my hero❤️🙏🏽!!!!!!
your videos are truly helpful. . thank you !!. =)
I've spent forever trying to figure this type of problem out and this helped so much! Thank you!
my math teacher decided to skip this part of the unit but then said he is putting it on the test one day before the test. thanks for this.
Homie ur a legend for this
Yay! I understand! Thank you!!
Thank you so much sir! This was the exact doubt for me, to how to put sign... 😊
Bless your soul
makes way more sense than my professor's table.
Can I give you a big kiss?
Kevin you may
Great tutorial! I'm having a hard time figuring out how you factored the polynomial at the start though? When grouping, the second set doesn't seem to have a greatest common denominator, and when trying to use the rational zero theorem I don't get the right answer either (though I am very likely not doing it right). Do you have a video on how you factored that specific polynomial? Very new to this, so sorry if I'm missing something super obvious :D
I would also like to know how this factoring worked. I was not able to get those values.
THANK YOU!!
this video is the best
Thank you very very much
Thank you so much..☺☺
Thanks Alot!
thank you sensei!
Good job.
Thank you so much you saved me :))
Thanks man! You saved my bacon.
Can I have some bacon
thank you!!!
Awesome!
thank you so much
This sign chart was very self explanatory.
Thank u so much
So on point
I understood everything other then the way you factored it down to (x + 5)^2 (4x + 3) (x - 4) > 0. I tried looking at other videos including yours but the factoring is much simplier. My guess is factoring by grouping???
Can u give an example where u have to put in both set and interval notation and graph it, please? My teacher is bad at this.
Ty!
when my teacher teaching this i can not understand ! :( the one that there's 7 steps. and the last one was the graph ,! well when i watched ur video now and clearly understood :) thanks by the way :D
Thank you
omg is it that simple you saved me from the test tomorrow
thanks man :)
Thanking the Lord for you!
thank you
what I don't always understand is how the original greater than symbol > or < at the start of the question influences whether you're looking for the positive or negative symbols in that final step when building intersections.
greater than zero, or > 0 means we are looking for positive values. Less than zero, or < 0 means we are looking for negative values.
@@MySecretMathTutor it makes a world of sense when you say it like that
thank you sooooo much but we should put plus and mins infinity when studying sign isn't it??
thank you sooooo much now l get
Why do we move all the terms to the left side? Which of course gives us 0 on the other side.
How did you factor the polynomial? I searched for the video, but couldn't find it.
I'm not sure if you still would view comments especially on an older video but it seems like this could help me a lot but i need to take it back a little with the exponents and variables. If you could help, that would be great
It's pretty advance factoring if someone from Algebra 2 is trying to solve polynomial inequalities. So I think he was thrown off by the initial step, because it's not covered in those classes, for me anyway because I was never taught the rational root theorem to do this factoring.
Can you send the process in factoring the polynomial? couldnt find it either
send me the link too pls
I'm trying to do this inequality:
(x-1)(x+1)(x+4)>=0
If I do this for the factor x+1 for the interval -4
Ibrahim Malki
Chudur bhai
For the interval -4 < x < -1 you can only choose values that are BETWEEN that interval. 0 and -1 are not values that are BETWEEN. Only -2 and -3 are values of interest since they are between and you got negative results when you tested those two values.
شكرًا
btw how can i use this after I graduate in highschool
Lets say i have a motion of a piston and it is shown on a graph as a sin function. your boss wants to know how much time the piston spends in the top end of the chamber apossed to the bottom of the chamber. Your job then could be to list the Thermodynamic heat transfer diffrence between the two or all sorts of data about the piston.
its bad when the guy with the screen name battered-hole has to discribe this to you.
If you’re unlucky you’ll gonna need it in college, like me 🙂🔫
My prof made the tables and expected we understand it lmao
thank you very much i have exam for tomorrow
How do you do the factor thing
Bond, Chemical Bond Depends, you can do Ruffini or if The largest exponent is squared, you can do a second degree equation
You just saved my semester from going down the drain....
thank uuuu
thanks