04 - Completing the Square to Solve Quadratic Equations - Part 1
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- čas přidán 24. 06. 2019
- Visit www.MathAndScience.com.
In this lesson, we learn that all quadratic equations can be solved by a method known as completing the square. This method involves changing the left side of the quadratic into a perfect square, which means that we can then take the square root of both sides to find the solutions.
All quadratics can be solved this way, even if they aren't factorable. The famous quadratic formula is actually derived and comes from the method of completing the square, which is something we will discuss in a future lesson.
Thank you for your generosity giving your knowledge free is very appreciated by all the viewers and the devoted students all over the world.
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You are one of the best Maths teachers I have ever known. The way you breakdown complex concepts into simple ways for easy understanding is just amazing . You have indeed stimulated further my interest in maths.
Thanks for the freely given tutorial.
OMG I have spent 2 weeks struggling with this concept - and he explains it like MAGIC. Thank you for teaching.
You are one of the best Maths teachers I have ever known. The way you breakdown complex concepts into simple ways for easy understanding is just amazing . You have indeed stimulated further my interest in maths.
Thanks for the freely given tutorial,
Thank you for your generosity giving your knowledge free is very appreciated by all the viewers and the devoted students all over the world
Give this gentleman a Nobel Prize for education! Name him the Friend of Humanity plus a Congressional Medal.
The part of "time 1/2 and square it" is the eye of the needle, which has stopped millions of camels to get through it. Sir, you have done a great job to open the gate to algebra heaven.
This man has succeeded in elucidating the fact COMPLETING OF SQUARE is still a waste without factoring....
We do🔥 COMPLETING of SQUARES only for us to be able to factor again🔥
Best math videos. Thank you. It is fascinating how the process of dividing by 2 and squaring makes the equation workable regardless of values that are not factorable.
you saved me. i could not understand this at all. i tried every video but nothing worked, you are the best teacher
Nice teaching.👌👌👌👌👌👌
Me using this video instead of my actual lesson because this guy is so much BETTER!!!
The legend, the myth.
Thank you so much . Really, the way you elucidate is very clear and easy to follow . I have benefitted you from you tremendously. Indeed you deserve millions of subscriptions, and and I am sure you make an immense difference in my people's lives .
You're the best you know how to explain to make a learner understand 🎉🎉
I really understand it now thank you so much ❤️❤️🎉🎉🎉😊😊
Thank u sir,I'm just revising my math knowledge from ur interesting teaching method. Keep it up.
Completing The Square makes a lot more sense when it's done with an area model. You're a good teacher, though.
Thank you so so much. I've been struggling for 2 months, your explanation is way better than my maths tr.
The best explanation ever. Thank you
I am immensely appreciating your videos!
Excellent lesson. It’s my 4th time through and I have it. Awesomeness squared.
Please dont stop posting math videos. Love you man ❤
Love you back! And thanks!
Excellent explanation. Easy to follow and understand. Thank you
These videos are so good.
Wow is all I can say. Great lesson. Thank you so much.
My brain has been in melt down over x^ + (x+1)^ = 25. I got it down to x^ + x = 12,
but that is as far as I could go. I followed along w/paper & pen, each step.
Starting at 10:15 - 15:25.
My answers are 3 or 4. 3 solves for my x
Yes, it's the old 3,4,5 triangle.
You're an amazing guy. Thanks I'm learning this at 27 years old.
For what ?
Thank you for this amazing lesson!!
You are my super tutor
Thank you for your valued time, sharing knowledge, can you kindly share the link where you explain about Factorising... @Maths and Science
You explained so easy a baby could understand!I finally got it.thanks
that is wonderful! it is really briliant! alot of thanks!
I need the titles of previous videos before this one
It is difficult to remember... because I do not understand why we do that...!!!
THANK YOU... SIR...!!!
Thank very well because any time I got you easily solve it
What playlist is this video part of?
I tried to find it in the channels playlist but I culdnt find it.
Its helping me so much! thanks.
It's part of algebra course 2, unit 9. Hope this helps, he's helped me so much too but I know how confusing it can be if you can't find the playlist.
you are an amazing teacher
Thank you!
Thanks our math expert
👍 lesson. But it would have been been better if you had drawn ✍️ the square to explain it. Students will understand much more in visual way.
Depends on the student
Thank you so much
great teacher
THANK YOUUU!!!
You are very welcome!
For this method does a have to be 1 and b an even number?
Excelente
Thank u sir very very much
Thank you teacher
thank so much dear for i have understood
Awesome 👍
thank u
Love u sir
Well done! Thank You
Thank you!
Where are the other parts?
Are you teaching algebra 2 topics? What is the name of this course?
Yes, and the title of this course is called "The algebra 2 course". Thank you!
Thxs
10:35 example
I'm pretty sure that this guy and the guy that invented "completing the square" are the only two people that ever did complete the square.
Can someone please explain or at least share a link to a video explaining why we divide the b by two and then square it?!
I just found this video 3 days ago. After watching this, you will understand how & why, then you'll never forget.
czcams.com/video/hJhoEik8P6o/video.html
Completing the Square - the classic way! by (MikeDobbs76)
Sir help me by solving below question.
X²+2x+2=0 solve this by complete square method.
Jason is very good.
Thank you I really appreciate it.
@@MathAndScience :
I want to see you teaching the following courses in the future:
Linear Algebra
Partial Differential Equations
Advanced Linear Algebra
Advanced Calculus
Complex Variables
Algebraic Topology
Differential Geometry
Axiomatic Geometry
Plane Geometry
History of Mathematics
But what if b is not as easy to be divided by two like 15x… you get a decimal. Right?
decimals work.
I am sorry to ask you this question sir
What if the -6 in that equation X^2 -6x -3 is and odd number like -7x then what are we supposed to do?
You do the same thing but you need to deal with the fraction 7/2. Not fun!
@@MathAndScience thanks so much sir
I am a young basketball player but you made maths more easier for me ❤❤
13:51 How ?
I mean why did you add ?
What if i don't get a perfect square quadratic?
It always has to be a squared quadratic if it’s not then guess ur ans is wrong or Check w ur teacher once
Ilove you dady
Lol
1:21
i hate my X,, dont ask Y
LOL
Smart🤣 and funny. Loved it. 🇬🇧
LOL😂
OK... I need to solve a simultaneous quadratic equation that is
;4x2 -5y2 =6
3x2+y2=14
anyone knows how to solve it, please comment..its urgent
How does it work with this one. Y^2 +3y -10=0. I don't seem to get the right answer. Get (y +3/2)^2, which expands to y2 +3y +(3/2)^2 -10 =0+(3/2)^2.
Aghhhhh
💪💪💪💯💫
X=-1
1+(-2)+1=0
Being the first
dont work
it did for mine x^ + x = 12
3 or 4.
3 works