The Factor Theorem

Рет қаралды 47,941

Күн бұрын

Пікірлер: 49

@1stClassMaths Жыл бұрын

I knew because I designed the question. I am just using it to demonstrate the theorem. In the exam they will not expect you to work out the factors without giving you one first.

@cyv.er08 9 ай бұрын

Most underrated gcse math tutor

@sheenu-o2m 29 күн бұрын

Finally after seeing many math channels and struggling with understanding I found this channel which is just wow...Like my all doubts are cleared by watching this single video wish I could find this earlier anyways there's never too late.

@camerongrinnell-wright9250 10 ай бұрын

This channel is 1x10^100000 better than my actual teachers.

@1stClassMaths 10 ай бұрын

Write this as an ordinary number

@fundycool1089 10 ай бұрын

1,00,000 million (prob)

@yeetusnoodle 8 ай бұрын

Way more @@fundycool1089

@ronynkrumahzakaria5926 6 ай бұрын

That's not too nice. I'm sure your teachers are also trying their best.

@CB-gl8qm Жыл бұрын

Thank you for running through this - you are really clear at explaining it :)

@1stClassMaths Жыл бұрын

You're very welcome!

@Maxtreon. 8 ай бұрын

Why is this channel underrated. Thanks man

@1stClassMaths 8 ай бұрын

Dunno. 😭

@joeyramstad8529 5 ай бұрын

thank you so much for this! reviewing my pre-calc in preparation for university calculus after a five year gap and this was for some reason one of the hardest concepts for me to remember. my textbooks and other online resources just couldn't explain in a way that made sense to me. This video helped recover faith that I'll be able to do this!

@humayunmirza6835 3 ай бұрын

Beautifully explained as always. My son's school teacher recommended your video channel! Thank you.

@OlenanaWillis 23 күн бұрын

Thanks 🙏🏾,you really approached it in good different ways

@currytut455 Ай бұрын

nice work i did not know that, very helpful

@humayunmirza6835 3 ай бұрын

Thanks

@1stClassMaths 3 ай бұрын

Thank you so much really appreciate this. Thanks also to your son's teacher for the recommendation! Best of luck with the studies (well for your son at least!) 💙

@ifragyt4155 4 ай бұрын

deserves lot more than 50k subs

@1stClassMaths 4 ай бұрын

Maybe one day!

@ifragyt4155 4 ай бұрын

@@1stClassMaths for sure 💯

@Amber_malik776 Жыл бұрын

at 5:40 how do you know so surely that 3 in a factor is there a method to work it out in the exam

@NeonGlitch Жыл бұрын

he may just know it from before to save time - in the exam youd have to use trial and error to find the factors

@fungo.. Жыл бұрын

was wondering the exact same thing

@Kloogus Жыл бұрын

He said in the video that itd take too long to go through each one, so he chose the one that he knows is a factor, and its a factor because once subbed in for x, it = 0

@billieeillishissofuckinvha5139 Жыл бұрын

he said in previous comment that they will tell u a factor in the exam 😊

@Morpeth_Harriers Жыл бұрын

They give you a factor in thr exam and make you prove it’s a factor

@AditiGupta-k9f 10 ай бұрын

the video was so helpful! thank you!

@1stClassMaths 10 ай бұрын

You're so welcome!

@IAMCHILLish 17 күн бұрын

EXCELLENT WRK MAN

@kebabz5856 11 ай бұрын

imo the grid method that tlmaths taught for factorising is way easier but still great vid as always

@1stClassMaths 11 ай бұрын

Yes there are actually other ways that aren’t either of those as well. I use this as for me it is fastest.

@rakiri209 7 ай бұрын

@@1stClassMaths If u have no factors at all is the only method to use trial and error to find one of the factors 1st

@1stClassMaths 7 ай бұрын

@@rakiri209 Yes although you know the factors will be a factor of the constant term at the end. In this course though you will be given a factor.

@rakiri209 7 ай бұрын

@@1stClassMaths Thanks Damn considering i replied on a comment from 3 months ago you responded pretty quickly😅

@1stClassMaths 7 ай бұрын

KZbin shows me all new comments so I reply in KZbin studio rather than actually on the video. The newest ones are at the top :)

@BoscoPupaka 4 ай бұрын

❤❤ thanks man You just defeated my demon ❤❤❤❤

@ronynkrumahzakaria5926 6 ай бұрын

Great channel.

@neosnoe 7 ай бұрын

fm gcse in an hour thank you

@OptimesssPrime 9 ай бұрын

at 6:50 you say 4x^2 - 3x^2= 7x^2... is that correct?

@1stClassMaths 9 ай бұрын

Hi. If you listen again I say 4x^2 - (-3x^2). This is 7x^2 since you are subtracting a negative.

@OptimesssPrime 9 ай бұрын

@@1stClassMaths thank you for the reply, I get it now.

@paruljain794 24 күн бұрын

Thanks this helped!!

@yuutek4165 6 ай бұрын

When the coefficient of x in the factor is 2(or anything not 1), why do you make it equal to 0? Like when you have 2x+1 you figure out if 2x+1=0 then x=-1/2 and then you substitute the x into the equation instead of a… how does this work

@1stClassMaths 6 ай бұрын

If we had (2x + 1)(x + 3)(x - 2) = 0 then what we really have is just three numbers multiplied together equalling zero. If you multiply three things together and you get 0 then at least one of them must be equal to zero so either 2x + 1 = 0 or x + 3 = 0 or x - 2 = 0 We then solve each of these to find the x values that make their brackets zero and in turn the overall thing zero. The second two solve easily by taking the opposite sign but the first one requires 2 step as you describe.