You're definitely one of the elite math video makers on youtube. I always choose your channel first because you explain things so simply and clear. I could not get through factoring the difference of squares for months because I kept getting problems where it had an exponent of 4 and I just could not figure out how to apply the rule and there were no videos that specific and I couldn't believe that you actually had one! Thank you soooo much. Of course after taking so long with that I needed a refresher on cubes haha
I was not able to reply to your first comment from the difference of squares video…glad you got that figured out finally:) THANK YOU for choosing Tarrou's Chalk Talk as your go-to math channel and it makes a teacher proud to see one of their students (even on RUclips) never give up on a problem until you find the solution! That analogy works pretty good in life as well:) I very much appreciate that you took the time to "Thank the teacher" and watch and support my channel by subscribing and sharing my channel with others:D
No, 2y(x-2)((x+2)^2) is not correct because (x+2)^2 is x^2 +4x +4. Multiplication is commutative so the order of multiplication is flexible. The - in x^3-8 is accounted for in the formula so you don't need to worry about it when finding a cube root of b^3. Thank you for watching and your support:)
Thanks for being the 1st to comment and show your support by subscribing! I'm glad you found this video helpful and hope you will continue to make me your go-to RUclips teacher in the future:)
I want to thank you for helping me refresh my memory with this. I am using the Abecca program and the method they explain it had me a bit confused. Bam!!! Thank you again.
Professor RobBob ,thank you for explaining Factoring Polynomials Sum Differences of Cubes. There is also a pattern involved in the sum of Cubes and all students must put this method to full memory and also do a ton of problems.
Great videos! really enjoying them. could you regroup that last one from 2y(x-2)(x^2+2x+4) to 2y(x-2)((x+2)^2) does that work? also when factoring out 2y(x-2)(x^2+2x+4) is the correct order of ops to multiply out the parenthesis first, then the 2y at the end? also one thing that didnt click, the original 2y(x^3-8)
I am still confused by this unfortunately mostly because of the irrational numbers or non-perfect cubes with a problem such as 24x^6 -1029y^3 It would be amazing if someone could explain it to me. I understand the perfect cubed problems though.
Man if you did the last problem using difference of cubes first you get into one heck of a mess! I guess difference of squares is the way to go when you have both options?
I'm still confused. I'm doing a problem where I'm asked to factor 16x⁴- 250xy³. I think I've been looking at this too long or am missing a concept or step because I cannot seem to figure out how to factor this out...as a difference in cubes. Can you help me out? I will also try to email my professor. Thank you Mr. Tarrou!
This problem my book does is quite strange. It is from Precalculus: Mathematics for Calculus 6th Edition the problem f(x) = 2x^2 - 12x + 23 is solved by completing the square this way = 2(x^2 - 6x) + 23 = 2(x^2 - 6x + 9) + 23 - 2 * 9 (b/2)^2 = (6/2)^2 = 9 = 2(x - 3)^2 + 5 I'm confused on why they did the step with - 2 * 9 because they didnt subtract the constant 23 from the beginning? Is there a reason why? By the way love your videos :D
cossoalkahn12 To balance the two additions of nine, they subtracted nine twice. 2(9) - 2(9) equals zero. You are changing the look of the expression without changing its value. Thank you!!!
This was still in the early stages of recording...they do get better once I moved to my home office chalkboard...which you will see if you continue to need this channel for more math help:)...meanwhile, thanks for watching...BAM!!!
![Factoring: Difference of Cubes [fbt]](http://i.ytimg.com/vi/wPv59B66_RE/mqdefault.jpg)
![Megan Thee Stallion - Mamushi (Remix) [feat. TWICE] [Official Audio]](http://i.ytimg.com/vi/5c0_u9PsrsQ/mqdefault.jpg)
Happy to hear I could help:) Thanks for choosing Tarrou's Chalk Talk to learn from!
You're definitely one of the elite math video makers on youtube. I always choose your channel first because you explain things so simply and clear. I could not get through factoring the difference of squares for months because I kept getting problems where it had an exponent of 4 and I just could not figure out how to apply the rule and there were no videos that specific and I couldn't believe that you actually had one! Thank you soooo much. Of course after taking so long with that I needed a refresher on cubes haha
I was not able to reply to your first comment from the difference of squares video…glad you got that figured out finally:)
THANK YOU for choosing Tarrou's Chalk Talk as your go-to math channel and it makes a teacher proud to see one of their students (even on RUclips) never give up on a problem until you find the solution! That analogy works pretty good in life as well:)
I very much appreciate that you took the time to "Thank the teacher" and watch and support my channel by subscribing and sharing my channel with others:D
That's what I'm here for:) Thanks for letting me be a part of your learning experience!
Factor your difference and sum of cubes with Closed Captions. #math
No, 2y(x-2)((x+2)^2) is not correct because (x+2)^2 is x^2 +4x +4. Multiplication is commutative so the order of multiplication is flexible. The - in x^3-8 is accounted for in the formula so you don't need to worry about it when finding a cube root of b^3. Thank you for watching and your support:)
Thanks for being the 1st to comment and show your support by subscribing! I'm glad you found this video helpful and hope you will continue to make me your go-to RUclips teacher in the future:)
I want to thank you for helping me refresh my memory with this. I am using the Abecca program and the method they explain it had me a bit confused. Bam!!! Thank you again.
Professor RobBob ,thank you for explaining Factoring Polynomials Sum Differences of Cubes. There is also a pattern involved in the sum of Cubes and all students must put this method to full memory and also do a ton of problems.
10 years later and factoring still induces sleep. My new 11 mins nap time video.. BAM!! (wakes up)
THE THUMBNAIL IS...................................................... WOW I LIKE THIS CHANNEL!
This helped a lot during our midterms exam :)
Mr. Bean teaching math 🙌
Great videos! really enjoying them.
could you regroup that last one from 2y(x-2)(x^2+2x+4) to 2y(x-2)((x+2)^2)
does that work?
also when factoring out 2y(x-2)(x^2+2x+4) is the correct order of ops to multiply out the parenthesis first, then the 2y at the end?
also one thing that didnt click, the original 2y(x^3-8)
I am still confused by this unfortunately mostly because of the irrational numbers or non-perfect cubes with a problem such as 24x^6 -1029y^3
It would be amazing if someone could explain it to me. I understand the perfect cubed problems though.
Man if you did the last problem using difference of cubes first you get into one heck of a mess! I guess difference of squares is the way to go when you have both options?
I'm still confused. I'm doing a problem where I'm asked to factor 16x⁴- 250xy³. I think I've been looking at this too long or am missing a concept or step because I cannot seem to figure out how to factor this out...as a difference in cubes. Can you help me out? I will also try to email my professor. Thank you Mr. Tarrou!
2 x (2 x-5 y) (4 x^2+10 x y+25 y^2)
This problem my book does is quite strange. It is from Precalculus: Mathematics for Calculus 6th Edition
the problem f(x) = 2x^2 - 12x + 23 is solved by completing the square this way
= 2(x^2 - 6x) + 23
= 2(x^2 - 6x + 9) + 23 - 2 * 9 (b/2)^2 = (6/2)^2 = 9
= 2(x - 3)^2 + 5
I'm confused on why they did the step with - 2 * 9 because they didnt subtract the constant 23 from the beginning? Is there a reason why?
By the way love your videos :D
cossoalkahn12 To balance the two additions of nine, they subtracted nine twice. 2(9) - 2(9) equals zero. You are changing the look of the expression without changing its value. Thank you!!!
the only thing is the video a bit blur
This was still in the early stages of recording...they do get better once I moved to my home office chalkboard...which you will see if you continue to need this channel for more math help:)...meanwhile, thanks for watching...BAM!!!
Ben kept staring at me , I wanted to poke your shirt in the eyes. ty btw
lol Kenneth Blair
You're welcome, thanks for learning from #ProfRobBob :)
dsayyyyyyyyymmm he jumped from the free throw line AKA Micheal Jordan........He got the hops
LOL...that's the first time I've heard that:)
Thanks for watching too!
Keep it upp!!
try jumping higher next time.
:)
+Brenda G :)