How to factor a polynomial to the third degree by factoring out an x
Vložit
- čas přidán 20. 02. 2015
- 👉 In this polynomial, I will show you how to factor different types of polynomials. Such as polynomials with two, three, and four terms in addition to polynomials to the second third, fourth, fifth, and sixth power.
👏SUBSCRIBE to my channel here: czcams.com/users/mrbrianm...
❤️Support my channel by becoming a member: / @brianmclogan
🙋♂️Have questions? Ask here: forms.gle/dfR9HbCu6qpWbJdo7
🎉Follow the Community: / mrbrianmclogan
Organized Videos:
✅How to Factor a Polynomial
• How to Factor a Polyno...
✅How to factor a polynomial | Learn about
• How to factor a polyno...
✅How to factor out the GCF from a polynomial
• How to factor out the ...
✅How to factor a perfect square polynomial
• How to factor a perfec...
✅How to factor a polynomial by difference of two squares
• How to factor a polyno...
✅How to factor a polynomial by sum or difference of two cubes
• How to factor a polyno...
✅How to factor out an expression from a polynomial
• How to factor a polyno...
✅How to factor a polynomial by grouping with two variables
• How to factor a polyno...
✅How to factor a polynomial by grouping
• How to factor a polyno...
✅How to factor a polynomial to a higher power
• How to factor a polyno...
🗂️ Organized playlists by classes here: / mrbrianmclogan
🌐 My Website - www.freemathvideos.com
🎯Survive Math Class Checklist: Ten Steps to a Better Year: www.brianmclogan.com/email-ca...
Connect with me:
⚡️Facebook - / freemathvideos
⚡️Instagram - / brianmclogan
⚡️Twitter - / mrbrianmclogan
⚡️Linkedin - / brian-mclogan-16b43623
👨🏫 Current Courses on Udemy: www.udemy.com/user/brianmclog...
👨👩👧👧 About Me: I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips. Find more here: www.freemathvideos.com/about-me/
#polynomials #brianmclogan
I feel like the kid that said “woah woah” at the end
Haha I don’t feel like I am, I am that kid
@@grandma778 so you had him as a teacher? If so, then your lucky to have a teacher like him 😭 man I wish my teachers could teach me a whole lesson within 2 minutes like yours.
When you said we don’t have to go through the whole process I’m like wait no go through the whole process😭😭
Same
rightt
Yeah🤣
basically hes doing a normal factor now, 8 goes on the top and 9 on the bottom. Then you find the two numbers that multiply to get 8 and add to get 8 which is 9 and -1. since you factored out the x you leave that on the side and the your write x(x+9)(x-1)
I enjoy your baldness
haha cheers!
it's been a year daddy
I actually need the process for the factor
I love this guy, he explains his work better than any teacher I know and shows it visually making it very easy to understand.
Thank you SO MUCH for this explanation, I’ve watched countless videos trying to understand and you’re the only person who can actually help. Amazing teacher, keep it up💘
Helpful.thanks for helping a struggling 9th grader
Thank you so much! I've been struggling with this for an entire month!😭😭😭💙
Omg thank you so much sir! You made my activity so easy.
God bless💜
Very Good, Brian McLogan, Keep It Up! 🎉🎉🎉🎉🎉
Bro what Ive never seen this way and it's the easiest. Thank you sir
Thank you, English it's not my first language yet this video was the only one explaining my problem. I understood everything. Thanks
hi brian, what method would u use to factor this x^3 - 2x^2 + 2x +5 ?
Wow... Saved my life. Thank u 🥺
wait does it matte rwhere you put the numbers in the end? like could you still answer it as x(x-1)(x+9)?
Thank you!
I have a question,so what if the 2nd term is higher than the third one?what do you do?this is an example of what im saying:18x3+21x2+6x=
thank you so much mann.
Gracias my dude
I am so happy that an 8 year old video helped me pass my final exams , tysm 😊 💓
This helped so much
I’m doing My Open Math homework factoring polynomials and I’ve retried the first one about 4 times with different numbers and I still don’t get it. I don’t know how to deal with the exponents. I’m getting so frustrated I’m about to drop out of college. I’m a dam English major!
I haven't slept in 32 hours and am studying the exact same thing for midterm I dont understand tmrw, my mind is honestly in a weird place between awake and asleep and I feel like im losing my mind to this.
Thank you 😊
At the end when you got x(x+9) (x-1) how did you get that?? i always get confused right there..someone help asap please
CZcams: factoring with the AC method and you'll get it
fergio +9 and -1 multiply to -9 and also add to 8
Billy corgan helping me with my real problems 😭😭😭❤❤❤❤❤❤❤
Thats so much easier then what my teacher says she said do some magic Square thing and has more double the steps of he just did in like 3.
Thx again
thanks a lot sir
YAY TYSM :D
Hello, if the 3 terms doesn't have anything in common, is there any other possible way to solve it?
My problem here is x^3-3x^2-4 what should I do? Please teach me...
I need to find out 2x^3-11x^2-16 but I don't know what to do since there's no variable on the last term-
Thanks for the answer and explaination
Happy to help
I wish you were my teacher lol. Way better than mines.
How to factorize cubic polynomials with letter n?
So what do you do if the equation is 2x(cubed)+7x(squared)+6x? what do you do with the variable in the first x?
First, common factor as normal:
2x^3+7x^2+6x
x(2x^2+7x+6)
Now, instead of finding 2 numbers that add to 7 and multiply to 6 what you wanna do is open up two brackets like this with 2x and x instead of x and x cuz 2x * x = 2x^2:
x( 2x+ )( x+ )
Now, to find the number inside the bracket, look at the last term and find all it's factors:
- 6 * 1
- 1 * 6
- 2 * 3
- 3 * 2
Now use trial and error to find the one that works:
x(2x+3)(x+2)
NOTE: I know this one works because I use what I like to call a "wave check"
3*1 = *3*
| |
x(2x+3)(x+2)
| |
2 * 2 = *4*
*3* + *4* = 7
7 is the middle term so this one is correct
why did you skip the end process...? I'm lost lol
Thanks dad
me when i can’t focus in actual math class but i am riveted by some other guy’s math class posted on youtube
Boom
What if it was like, x^3 - 8x - 3?
helpful much!!!
you are very welcome!
This does the help
that guy at the end *woah woah* 💀
🔥🔥🔥👌🏾
What grade is this?
My fellow logan
WHY DO YOU GUYS ALWAYS USE THIS EASY ONE !!!! I WANT ONE WITH A CONSTANT
same
Genius
What is a gcf you said at the start?
hcf
Gfc= greatest common factor
this guy looks tough as fuck, like a badass criminal or smth lmao
OK, so the method for factoring a polynomial with 4 terms isn't applicable to this cubic equation, interesting.
video link to the process he skipped over: czcams.com/video/Uc8b_vgRSPQ/video.html
😭😭😭😭😭 thanksss
Will u give the ans for this question: x^3-kx^2+9x
That can't be graphed/factored; we need the value of k
i have a question, why am i required to do this in 6th grade?
Because you're in private school?
What if all they share(the only gcf) is 1?
Eg x^3-13x+12
there is no GCF on that one, nor is it factorable
YO DID I JUST UNDERSTAND THAT
How'd he get the last part? I understood everything up until then lol
Do you still need help?
Yes I have no idea how he got that final answer 🥺
@@toplobster1040 I'll respond to this after I wake up
@@toplobster1040 in a quadratic equation, the number that is being multiplied by x^2 is a. The number being multiplied by x is b. And the number that doesn't have a x next to it is c. If a = 1, then you can factor it like this: find two numbers that add up to equal the value of b, AND those two values, when multiplied together, must equal c. In this case b=8 and c=-9 (c is -9, not positive 9, because as you can see it is being subtracted). Though I listed it in a reverse order up above, it's actually easier to focus on c first. List groups of two whole numbers that multiply to be -9, there's -1&9 -9&1 and -3&3. That's three options, for each of these, add the two numbers together and if they equal our b value (in this case 8) then we've found the numbers we'll use. As you can see 9 + -1 = 8, so those must be our two numbers. The next step is easy, simply write
(X + _)(X + _), and then fill in the blanks with our two numbers
(X + 9) (X + -1)
And that's how you factor when a=1, I hope that helps, ask me questions if you need. But there's probably good videos of it on CZcams if you just search "factoring quadratic equations"
If you're looking to factor something where a≠1, then search up "ac method factoring"
@@FreakyMossthis helped me
Couldve used this video instead of spending an hour in zoom class wasting my time
For sure
How u solve:z^4-z^2-16
OMFFGG SEND ME YOUR PAYPAL I THINK YOU SAVED MY MATHS FUTURE
Wait wait.. it was easy because last term contained variable x, to take common
m^3+4m^2-4=0 factorization
Solve this question please
@Yashita Aggarwal
But why this is question
Spoiler below . . .
Using the AC method, I got (x)(x - 1)(x + 9).
25x³+10x+1 Please help I don't no how to answer thank you!😊
Hold up😭
Why your in rush
not sure, maybe bell is about to ring?
I have a question,so what if the 2nd term is higher than the third one?what do you do?this is an example of what im saying:18x3+21x2+6x=
I have a question,so what if the 2nd term is higher than the third one?what do you do?this is an example of what im saying:18x3+21x2+6x=
I have a question,so what if the 2nd term is higher than the third one?what do you do?this is an example of what im saying:18x3+21x2+6x=
I have a question,so what if the 2nd term is higher than the third one?what do you do?this is an example of what im saying:18x3+21x2+6x=
I have a question,so what if the 2nd term is higher than the third one?what do you do?this is an example of what im saying:18x3+21x2+6x=
I have a question,so what if the 2nd term is higher than the third one?what do you do?this is an example of what im saying:18x3+21x2+6x=
I have a question,so what if the 2nd term is higher than the third one?what do you do?this is an example of what im saying:18x3+21x2+6x=
I have a question,so what if the 2nd term is higher than the third one?what do you do?this is an example of what im saying:18x3+21x2+6x=