Algebra Help: Square Roots

[AdamOlvera100]

Thumbs up if your breathing :P lol I just want people to give me thumbs up for once....

[soraya141992]

wish u could be my teacher

[trailmixgang]

This is the greatest video created under Gods green Earth. You are the Orson Welles of internet videos my friend.

[madamerotten]

Do certain plants have square roots?

[emack06]

With all of this knowledge available via the internet, no america student should be struggling in math, english and science. Given they have access to the internet of course.

[WIZARD101WOLFDRAGON]

um i wish i could hear you... maybe there was some thing wrong with my audio i couldnt hear you well

[miiSzUniqueo3]

If I can turn back my HighSchool Years ... I would want you sir as my Math Teacher! xD' :P Thank You for this!

[yuhcgte]

why cant this guy be my math teacher.... amazingly explained, thanks from a 9 grade drop out, who is now an electronics engineering student.

[Gavinvox742]

umm... why does the sound only come out on 1 speaker? It's like mono sound. o.o

[AviationVision]

Best explanation of the absolute value of the squareroot of x^2 I have ever heard. Thumbs up !

[Kask8t]

Finally!! A decent explanation of this tricky issue! thank you!

[blanca252007]

challenge...is funny but i kind of like this algebra thing....it makes me feel...like i'm actually using my brain..!!jijiji!! <{:o)

[kidsoplenty]

Excellent pressentation. When I asked my Algebra teacher "why", he simply states..."That's the way it works..." Thanks for explaining the why's that nobody would every answer. It is easy when I know why.

[zinzun69]

they never taught me though but i learn some way

[zinzun69]

im a 7th grader trying to learn higher grade math but its to hard for me help me on the square roots please

[xoxrobinxox]

U learn square roots @ grade 6.

[cutefishyz]

so what ?

[robloxgaara22]

@zinzun69 Me too

[S3v3nt3k]

thanks ! you really help

[YUDIANNE]

thank you alot

[bachar18]

why dont you just put the magnitude of x? its much more simple then trying to put these restrictions on kids because chances are if they dont understand this basic concept then math isnt really going to be what they are going to use in there career choice :D

[paulinbin360]

can you teach me how to solve the area of a rectangle when it has square roots?? please?

[nickolayer]

Could you explain that in a different way?

[Amethysting]

Why do two negatives multiplied = a positive?

[cagedkiller360]

Here's an example of this working in real life:

Say you were in an airplane and you were going downwards at a rate of 5m/s. This is the same as going UP at -5m/s.

To figure out the altitude of the plane 30 seconds ago, you would need to multiply by -30 seconds. (Displacement = Velocity x Time)

(-30 sec) x (-5 m/s) = 150 m

i.e. You were 150 metres higher, 30 seconds ago.

[cagedkiller360]

And as usual, the reply doesn't appear under the comment I wanted it to. :(

[Amethysting]

Thank you- very good explaination- my algebra teacher just looked at me

[HopamHR]

hmmm.... You are wrong cagedkiller. See, time is not a vector, therefore it can not be negative... time has no orientation or direction... it is independent and can not be manipulated. Second thing... you gave people wrong definition... s = 1/2 g(9.81) * t^2... you see, plane is not moving with constant speed, but constant acceleration(beucase of Earth's gravity)... and time is measured in secons(s) and not seconds(sec)... I'll continue ;)

[HopamHR]

@cagedkiller... CONTINUE:

so it looks something like this(in perfect conditions... with no gravity): 900 s^2 * 0.0833333˙ m/s^2 ..... sooo s(displacement)=75 m if you want to do vector calculation... u'll get s=g+a/2 * t^2... s=9.81m/s^2+0.16666˙m/s^2/2 * 900 s^2

s=4.98833333˙ m/s^2 * 900 s^2

s=4489.5 m

[yuffie876]

@~@ wah to much complicated math

[CheapChatter324]

when he says, the square root of -X.... there is no legit square root

(-a)(-a) = a ^2

negative times negative = positive

(a) (-a)= - a ^2

but (a) and (-a) are different #s... making it not a square root

[nickolayer]

A square root of a square is, essentially, its modulus, or absolute value. So, the root of x^2 is not x, but abs(x).

[RatchetHacker]

great teacher

[EdgeStormcrow]

this guy owns.. Im working through the whole mathtv site! thank you so much

i cant believe this quality is free, helps sooo much.

[parastish270]

You are one of the great teacher i had ever.

Mudasir

[brightnessQQ]

nice :)

[ElectronOnline]

thank you

i finding about Math Video

you are great!!

[simeonwislang]

Absolutely fantastic, thank you so much for your videos, they have helped hugely with my exam study. Keep up the great work MathTV

[fatshadow92]

what about plus or minus X?

[NaziSriLanka]

thanks

[panteraz3]

Thank you for this video!!!!

[CousinoMacul]

I love the basics. Great stuff!

[ixach]

Thank you very much. Your explanation is clear and concise.

[KimHjalmarsson]

Thank you for this video! I'm working on algebra and this broaded my understanding a bit.

[JBandKG]

Thanks man

[Waranle]

Your the best Math teacher i have ever seeeeeeeen!, I wish you had some videos about Linear Algebra and Calculus ;)

Thank you Sir

[MathMikie]

he has some videos on calculus but not really linear algebra