Starting prelims in 5days😭😭😭😭😭😭your videos are great Sir!😭😭🤝
@beatalabercensie2174 Жыл бұрын
Trial exams starting next week...rewatching these videos for revision. Thank you so much sir for all your help. You are a blessing ❤️❤️ Love from the Eastern Cape
@MlungisiNkosi Жыл бұрын
My pleasure 😌
@kamogelomodjadji40052 жыл бұрын
One of the best teachers in South Africa😎
@MlungisiNkosi2 жыл бұрын
Thank you 😊
@tambiraimuduma4601 Жыл бұрын
thank you very much sir ,you`re a truly a life saver, your pysics and maths lessons do it for me.😊
@Mei2.0 Жыл бұрын
to find the middle term in the long bracket the alternative is to use the "b" rule, equating the squared value of "b" to the bx2 value in the equation. It's available on the mind action series page 154
@MlungisiNkosi Жыл бұрын
Yes I eventually used it
@rasealalebogang6176 Жыл бұрын
I was struggling alot when coming to this part ,but now im cool with it , thanks😊
@ntsitselelemirriam11162 жыл бұрын
Never thought factoring cubic is so easy ♥️
@MlungisiNkosi2 жыл бұрын
Thank you 😊
@zanonoza4918 Жыл бұрын
Mlu , you're good at this baba . Keep shining. It's your calling ❤
@nonhlanhlamoloi52502 жыл бұрын
This Is the best . Been struggling alot with cubic funtions for sometime now and I'm finally seeing the light, Thank you sir🙏
@MlungisiNkosi2 жыл бұрын
You're welcome
@tasteafrica15623 ай бұрын
Casio calculator 991 does it for you
@ChunSwaeRrrr2 жыл бұрын
Hi sir , i believe there are sometimes two values that can give you zero when you substitute to get zero in the very 1st equation cause I tried (+3) and it worked but when I had to simplify the equation it didn’t balance out like the (-1) so I encourage the learners to try and see if they can get 2 values equating to zero cause one can feel stuck
@MlungisiNkosi2 жыл бұрын
I get you…. You’re right
@Enzyy_1X Жыл бұрын
i am loving your series so far, at least understanding. Thank you once again
@MlungisiNkosi Жыл бұрын
You’re welcome
@nosiphoprecioussopekisi721 Жыл бұрын
You are such a life savior Bab' Mlu🤗
@MlungisiNkosi Жыл бұрын
Ngiyabonga ngane yami 🫡
@Tshilidzi.m-yd2jk Жыл бұрын
Thank you sir,I was struggling with this but now I got the skill and it's the easiest.❤️
@user-en4ze5xe3c10 ай бұрын
I just subscribed to your channel a week ago, and I have watched Grade 12 Calculus Lessons 3 and 4 a few times now and I still don't understand how you factored the quadratic portion of f(x) = X^3+4X^2-11X-30. I see how you found the first factor (X+2) but you have to find a better way to show how you found the second factor (X^2+2X-15) -- especially the middle value (2X). Can you make a new video, if you don't have one already, showing the process by itself step by step? Thay would be great, Thanks. Also - lesson 4 is way too long.
@MlungisiNkosi10 ай бұрын
Thank you for the feedback ❤️
@lindokuhlenkosi82382 жыл бұрын
You are honestly the best.❤️
@MlungisiNkosi2 жыл бұрын
Dankie Mlindos
@tandzilematsenjwa9811 Жыл бұрын
Finding the middle term is a bit tricky but as I will be practising I hope it will be easier..
@MlungisiNkosi Жыл бұрын
How are you finding it now?
@rachealnkosi85672 жыл бұрын
Had forgotten this thank you for the reminder
@MlungisiNkosi2 жыл бұрын
You’re welcome
@jin003052 жыл бұрын
27:07 Very much sir 💥
@MlungisiNkosi2 жыл бұрын
You’re welcome ❤️
@siyasangatatsi60792 жыл бұрын
Thank you so much Sir 🙌🏽
@MlungisiNkosi2 жыл бұрын
You’re welcome
@lee.thaboo2 ай бұрын
On the 2nd example if you're confused as i was when we had to find the middle term in the trinomial -Its actually "x multiplied by which number gives you 7x^2" not "1 multiplied by which number because then you wouldn't get 7x^2." I think our fave uncle made a mistake there but its okay he taught us well enough to recognise and find what was incorrect regardless lol🎀
@gradimukwasa13862 жыл бұрын
Great video, i liked how you use the synthetic division. Very well explained
@MlungisiNkosi2 жыл бұрын
Thank you 🙏🏾
@mueededross35402 жыл бұрын
13:53 does x not = -2 as it was (x + 2 ) in the bracket and for the next example when u brought it out you did change the sign?
@MlungisiNkosi2 жыл бұрын
Thank you
@lunganindlela48062 жыл бұрын
Yes it does the signs were suppose to change
@roselinemante51112 жыл бұрын
Thanks you 🔥
@MlungisiNkosi2 жыл бұрын
My pleasure
@queenmohoera31942 жыл бұрын
I have a question sir... should we always use 1,-1,2,-2 etc... When finding the factors?
@MlungisiNkosi2 жыл бұрын
Yes
@THE_MUSKETEERS016 Жыл бұрын
For the last cubic function X³-12x²+36x I got x-6 as a factor
@MlungisiNkosi Жыл бұрын
Awesome 😎
@Tizozo_M229 ай бұрын
Isn't in the equation to sole for cubic for the first example where we found -2 would equal to 0 to get x - intercept so it's going to be x+2=0 for one bracket but as a intercept its 2
@sarahadem77742 жыл бұрын
❤❤
@MlungisiNkosi2 жыл бұрын
😍
@owamlingani33682 жыл бұрын
x- 3 is also a factor . Should we use the factor that we found first ?
@MlungisiNkosi2 жыл бұрын
Absolutely and you still end up at the same place anyway
@sithembisilekumane2462 ай бұрын
This method is not the same as that one of long division but it looks like it's easy to work with
@GibsonMogale Жыл бұрын
So after getting the factor will I be penalised for using this formula👇 (X+1)(x²+bx+c) Then from the I get rid of the brackets using the original equation Don't know if I make sense🤧🤧🤷♂️🤷♂️
@MlungisiNkosi Жыл бұрын
I understand what you mean. No you won’t be penalised if you do it correctly
@Fine5592 жыл бұрын
Instead of saying X=0 at 22:38 I substituted into X like you have been doing and the only number that gave me 0 was 6 and so I said X-6 is a factor but I still got the same answer, I have a really good feeling that I'm wrong because I feel like you can't use a big number like 6 as a factor, am I wrong sir?
@MlungisiNkosi2 жыл бұрын
That sounds correct though… But how come you skipped all the other numbers and went for 6? I’m trying to understand your process…
@Fine5592 жыл бұрын
@@MlungisiNkosi I kept substituting from one, until I got to 6
@DelisaWonder11 ай бұрын
Finding the middle term is a bit tricky
@MlungisiNkosi11 ай бұрын
It does take a bit of getting used to
@awesomemovieclips92682 жыл бұрын
I do my synthetic in a table form.so much easier
@MlungisiNkosi2 жыл бұрын
The point is that you have something that works… I’m happy 😊
@yonelamashiyi31863 ай бұрын
Sir...your videos help me a lot, thank you🙏❤...but I'm not gonna lie... Synthetic Division is WAYY easier than this.
@MlungisiNkosi3 ай бұрын
As they say different strokes for different folks… I’m glad I could help though.
@rachealnkosi85672 жыл бұрын
There is a vid in physics where you dropped your WhatsApp number but I can't find it please share them .🙏
@MlungisiNkosi2 жыл бұрын
Please check it on my KZbin page
@user-mh6pb4be3b4 ай бұрын
Hi did you find it ,if u did pliz share l want it ❤
@cynthiamakhumo9966 Жыл бұрын
Hello sir may you please do September 2020 question paper from free state questions 8 calculus question please