Math tutorial for solving rational equations
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- Опубликовано: 20 окт 2015
- 👉 Learn how to solve rational equations. A rational expression is an expression in the form of a fraction where the numerator and/or the denominator are/is an algebraic expression. There are many ways to solve rational expressions, one of the ways is by multiplying all the individual rational expressions by the lowest common multiply (LCM) of the denominators. This eliminates the denominators and then we can evaluate the resulting equation accordingly.
It is very helpful to check your results by substituting them into the original equation to see if they are true. This also helps to identify the extraneous solutions. An extraneous solution is a solution that is obtained during the course of solving an equation but which does not hold true for the original equation.
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Organized Videos:
✅ How to Solve Rational Equations
• How to Solve Rational ...
✅ How to Solve Rational Equations with Trinomials
• How to Solve Rational ...
✅ How to Solve Rational Equations with Binomials
• How to Solve Rational ...
✅ How to Solve Rational Equations with Monomials
• How to Solve Rational ...
✅ How to Solve Rational Equations with an Integer
• How to Solve Rational ...
✅ How to Solve Rational Equations | Learn About
• How to Solve Rational ...
✅ How to Solve Proportions with Binomials
• How to Solve Proportio...
✅ How to Solve Proportions with Trinomials
• How to Solve Proportio...
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#rationalfunctions #brianmclogan
Growing up, I had TWO math teachers ask me if I was stupid in front of the entire class. I cannot begin to imagine how lucky your students are to have a teacher that actually breaks down all the parts of equations and explains them in an easily understood way while also being encouraging. I appreciate all that you do!
are you stupid?
@@emowoji holy shit
I would throw hands immediately
what if u are stupid??!?!?!??!
my family tells this to me because i always can't do math :(
all of my peers and siblings even younger than i am can do stuff like this and I can't
These kids don't even know how lucky they are to have him as a professor.
I have a fucking math teacher that doesn't speak English
@@justinyeung9675 rip
@@justinyeung9675 riiioppp🥶🥶🥶🥵🥵🥵😤😤😤🆘🆘🆘🤗🤥😮🐸🐸😈😮😮🤔🤥😈🤥😍🤔👨🦯🔫🤐🤐😟😬🙄😠🤬☹️😕😱😳😲😦😲😫😞😫😖🌞🌞🥶🥶🥴🤥🤕😹😹🌟💦💯😺🌟💝💖🤎💗💔❣️💟💕
@@justinyeung9675 No need to be using that kind of language.
@@randytownley balls
I would love to be Jake Flicher right about now.
Ed???👁️👄👁️
@@yourmissingc0ckring759 found you
Bro you are my hero, I had no idea what I was doing since my teacher is so bad at explaining thanks !
sorry to hear but happy to help
here literally 5 years late and this was so helpful especially since i have to learn it from home
ey same here
Same
came back to say i got a 92 on my test 😌
@@laurynkennedi9578 nice
I've been watching his videos ever since I had to stay home the whole year and he has helped so much
When he asked "are you ok" then you started crying...
Jon Col I did that
Thank you for relieving so much stress and worry off of students within 6 minutes and 32 seconds.
you are so welcome!!
This video is a lifesaver. I'm binging videos right before my quiz because I've been struggling in math, but this makes a lot more sense.
I wonder why he has only 400k he deserves 4m to be honest
Well we've added about 125k to that so we're on our way!
@@breezy1687 Man, he at 689K rn. All because he be a legend.
@@steelhoof2394 CANT WAIT FOR 690K
@@breezy1687 we missed it
Yo almost 1m!!
This video has helped me so much more than my actual teacher that just shows us her solving the problem and then sends us off on our own without notes or anything to refer too
I am doing online classes for school and you have been saving my butt. Algebra has been my weak spot and teaching myself on top of that has been... interesting. So thank you so much for your help.
You save me from suicide
happy to help you with your math Ken suicidepreventionlifeline.org/
@@brianmclogan I'm pretty sure he was joking lol but respect
ya i thnk he was joking
LMAO-
Bro he dead a** dropped the suicide hot line that's a A1 teacher
@@brianmclogan what a joker
since this video was 7 years ago, i am so thankful to find your youtube channel and watch your old video tutorials. it really help me to review my lessons for tomorrow's exam, thank youuu!!!
This man needs to be famous he’s amazing at this stuff👏
I wrote down the wrong problem and it took me 4 minutes to solve. Then I realized that he meant to put an x^2 - x intead of - 1..... Im done.
lmaoo same
U guys could work it out 👀
This taught better then a hour long lecture thanks man these are great
Onigod thank you so much I’ve been stuck on a worksheet for a long time😭 I was so confused
Looks good. I think the only thing I would do differently is that after factoring the denominator, list all the values x couldn't be.
I was gone all week when my teacher went over this and this is such a great way to catch up to what I missed.
thanks man, this is so helpful, im litterally nodding at you when you turn back
Oh to be chosen over the intercom to be checked out.. Lol love your videos man! Lifesaver
Ngl, even the videos from 2015 are helpful. This man is a legend more helpful than my teachers irl.
Thank you, but if the solution was a whole number would you just put it over 1?
iam really bad at factoring fractions, do u have any vids that can i help?
Still helping 4 years later....👌
Where did the 3 come from ?
Mr.McLogan, your students are very lucky to have you as their teacher
Brian McLogan=the G.O.A.T
Thank you so much! My teacher just solved and didn't explain why she was doing things. Now it makes sense. Thanks!
this helped me so much thankyou!
You're amazing!!!! THank you!
I truly hope to have him as my math teacher/professor.
I like how the mistake of having x^2-1, rather x^2-x, being changed in the video but not the thumbnail
Why when you multiplied the lcd of x(x-1) to x+2/x did you lead with (x-1)(x+2) instead of (x+2)(x-1).
Perfect! thanks!!
This video is teaching me better than some of my school teachers ever did. Holy
Keep doing what you're doing!
THANK YOU!!!!
This helped me with my assignment
You are cursed with fools for students but you still blessed the world with your teachings.
Thank you Brian.
THANK
YOU
sir may I ask? uhmm what if the another denominator is trinomial?
Why did you divide the denominator with the lcd. Why didnt u multiply it to make the denominators same. Plz help, anyone
0:05 tell me why every high school teacher does this 😂 they always get so annoyed
bless you sir im a college student your videos are literally the only ones getting me closer to my degree. (english major, this is all greek)
Kia Hendricks you need math for English?
@@niyarose6838 yes
Learning math better from this guy than my teacher
Love it
thank you so much
THANK YOU SO MUCH FOR POSTING THIS! I'm studying for the GRE and I was stuck on a problem that was similar to this and you saved me from going bald!
thank you very much
U saved me from a math test thanks
i hope you continue that one
You have saved my life
thanks again
What if the equation has 2 variables?
Where do you teach lol, i need to take math there.
no need, I am here for you online
Brian McLogan is there any way you can help me? I really need help I have an exam tomorrow.
Lizzy Portillo how did ur exam go
@@lizzyportillofficial How was the exam?
@@lizzyportillofficial how did ur exam go
I have a math exam tomorrow and my professor doesn't even lecture, just makes us do worksheets on our own and watch lecture videos. This is soooo helpful!
it seems i’ve seen a few videos over this topic cuz i’m really struggling with it and i just can’t understand it:/
he is a hero i look at it when i do my homework and i look at it and i do my homework by looking at it so i can do my homework thinks and some suicide so so so so so so so so soooooooo think u
so happy to be able to help you with your math Monique!
Te amo Brian gracias por esto me salvaste la vida puñeta, cdo cumpla los 21 te invito a una cervecita o dos ; )
What if the answer is a whole number???
Thank you so much 😭
Very welcome!!
the beginning lol
Problem is one & the solve is done with other.pl rectify.
Isnt 2(x) equal 2x?
How did he get the three throu multiplayer
lol what type of foil is that my guy
The Changster 🤦🏻♀️
fr tho I was understanding until he did that now im like???????????
nevermind I figured it out. he just added the 2x and -1x after he foiled he just didn't show that part.
F.O.I.L First, Outside, Inside, Last.
this tutorial LITERALLY saved my life
#quarantinelife #COVID19
Maaheen Shaikh samee this was so confusing trying to learn it online
i'm online schooled so this is how I've been learning on a daily basis even before COVID-19 lol
Jesus loves you
You are a fucking legend every math video I need help on your there. Your a goddam hero and a modern-day superman you save so many lives and grades you don't even realize i just want to say thank you. And i hope your haveing. a wonderfull life
gracias pelado
i love you sm
When I began solving this equation I noticed that we would have an X cubed and all mess got loose. So, Brian changed the denominator.
Fill in the missing values to make the equations true. 1og5 11-1og5 9=1og5 2
I CANT ANYMOREEE I WANNA CRYYYY 😭
This 6 Minutes Video is 5 Months of What I Learned ÷
anyone know how to solve a rational equation.
YOU ARE MY JESUS CHRIST TO MY 2020 MATH MELTDOWN.
I really cried cause I had 40 minutes to work on a quiz and I couldn't solve even one. love having a smooth brain
Legend
Isn't it supposed to be x²+2x-x-2? Or am i blind?
my teacher lend us copy about the different topics and she didn't even explained and teach but she already lend us question to answer and it is so hard. She makes us self studying. damn her
edit: she recorded the scores that we got. damn
*I'm still wondering how he got +2*
Im confused at the LCD
the x^2 - x , he factored it. since x^2 has 2 x's then it is equal to x ( x - 1 ). becuase x times x is x^2 and x times -1 is -x, which makes it x^2 - 2. It was the lcd since the all the other denominators, have an x and a 1.
We’ve got the same name, @Brian
Okay, why did the -4x become a -3x?
Just wanna answer this quick 3 years late. When he adds the 2s to both sides he also mentally added the added the positive 1x to a negative 4x and didnt write it down. XD
How abt da 4? Where did it gon
got multiplied by the x
Brian McLogan thank youuu
Can you translate this video's to Arabic please ❤️❤️ I need it 😭❤️
haram h3b
is there any way he can replace my pre-calc teacher :)
Thanks sir u save me from suicide
how tf did he foil that?
using foil
Good one
I’d love if my teacher actually gave us more than 15 seconds to ask a question… doesn’t even let us consume the info, just bangs into the next topic… do good in high school ladies and gentlemen the school year is so much longer allowing you to grasp information much easier as there’s more opportunity and review
BROO i don’t understand this
Jake Flincher is literally famous cause he probably had a dentist appointment or something 😂
i’m sorry this doesn’t make sense…. isn’t (x-1)(x+2) equal to x^2+2x-x-2 ?? bc you multiply both? twice????
I’m in college teaching myself this stuff 😢
My teacher referred to me this channel
I guess it's just that im stupid since everybody likes this teacher...
awwwww...i solved you original problem. no need to change the question.
2:45 start here
Does anyone notice that he foiled wrong?
Why so frustrated when students ask questions.
They worked hard to discuss and then no one gets it?maybe