Rationalize the denominator to simplify a radical expression
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- Опубликовано: 5 ноя 2014
- 👉 Learn how to divide rational expressions having square root binomials. To divide a rational expression having a binomial denominator with a square root radical in one of the terms of the denominator, we multiply both the numerator and the denominator by the conjugate of the denominator and then simplify. When the square root in the denominator is covering both terms of the denominator, we multiply both the numerator and the denominator with the denominator and simplify.
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#radicals #brianmclogan
Who else has a test soon and just realized that you are wayyy more screwed than you thought you were…
me
Got a quizz tommorw i got adding down but multiplying 🫣
I needed you more than you will ever know! OMG, you saved my little mathematical heart from killing people.
AWESOME! You helped me find how to simplify radical expressions!
You are the best teacher! I would have been so lost without you lol... I have watched most of your videos and sometimes wish I had you as my teacher in high school because otherwise, I would not have had to re-take algebra 2 in college lol. Thank you once again.
THANK YOU!!! you are the best teacher I've never had
THANK YOU SO MUCH I TOOK SO LONG TRYING TO GET THIS RIGHT AND I FINALLY GET IT
just one question - after you do the multiplying in the box, how do you know what order it goes in? or does the order not matter
Thank you! This is a creative way of explaining things by using boxes. I’m going to use that for my worksheets.
Omg this was such a help I’ve been stuck at a question for an hour
Love from India sir..
Thank you so much 👍👍👍👍👍
It feels so good when you understand something ! Thank You sir !!!!
I had a little confusion and you cleared it. Thankyou
You saved my life! Thank you so much!
Thank you for this❤️
This helped tons tysm!
Thank you for learning me this. It took me a long time to understand by myself.
Thank you, you have truly helped me greatly!
excellent thank you very much
THANK YOU SO MUCH!!!!!!!!!!!!!!!!!!!!!!!!!! I have spent 3 hours doing all types of maths and not one of them was matching the correct answer thanks!~
taught it better than my math teacher ever will
just happy that I am able to help you out Victoria
Thank you thank you. Life saver😭🙏
Isnt the left diagonal o/ the first box 108sqr. Root of 3
Thank uuuuu so much this will help alottt 😁🤚
shouldn't the negative in the numerator cancel out the negative in the denominator?
Yes, the final answer should be positive 20 minus7squareroot three divided by positive eleven.
best teacher
Thanks so much man my pre cal teacher I guess thought I should have already known this lol
You’re a lifesaver 😭
hello sir, 😀😀😀
great video there
on 3:25 why did three not divide three.
very cool thanks
You are very welcome!!
thank youuu
No problem 😊
I think sir the final answer is
-7 square root of 3 over1; and
Positive 20/11
Plz answer this too
3+√2 / 4√2 rationalize the denominator
You can square the numerator and denominator, so you can eliminate the root in the denominator.
www.mathsisfun.com/algebra/rationalize-denominator.html
this website ha been very helpful to me. This should help you figure out your answer :)
3root 2+2/8 I guess!
Question 16.
FUCKING GODDDDD
happy to help
@@brianmclogan HAAHHAHAHAHAHHAHAHAHA THIS REPLY HAD ME DEADDDD
was i wrong or right i saw another video of you putting a different form
I am not sure do you have a timestamp we can look at?
I’m watching this December 2020 at 202am. Smh
Trig final?
you help alot thought i make good grades beacause of you
Love it, so happy to hekp
@@brianmclogan why did you put a emoij was i right or wrong
Can't we just cancel negative sign at the end
you could
I agree
Wait why is it -20? When -60 is divided by -33 you get positive 20/11
I divided every number by 3
Yes, i also get your point
how can the denominator will be negative we must do to positive
Wow
you forgot to put the costant first
🤦🏻♂️
i got 54-19 sqrt 3/33
So you know the timestamp where we diverge?
@@brianmclogan no
Hello people
Hey old use identities ....😢
am i wrong
srry if i didnt mistaken
Not sure
2024 any one
u r wrong it's 12 not 21
what point in the video are you referring to?
At 3:58 it looks like addition from the table he used.
-60+ 21 is correct because it has both 9 plus 12 then the root. :)
adele peter-point
Is also correct
That is correct
Usually watch these vids until he used this “box method” 👎🏽
yeah its just more visual.
Thank you thank you. Life saver😭🙏