Grade 12 Calculus Lesson 3 | Factorising Cubic Functions | Mlungisi Nkosi

#mlungisinkosi #grade12 #matric

[tshepanglephale]

Starting prelims in 5days😭😭😭😭😭😭your videos are great Sir!😭😭🤝

[kamogelomodjadji]

One of the best teachers in South Africa😎

[beatalabercensie]

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

[tambiraimuduma]

thank you very much sir, you`re a truly a life saver, your pysics and maths lessons do it for me.😊

[DoctorTholaphi]

Synthetic division gotta be so simple.. dankie bab mlu📍🙌🏿

[rasealalebogang]

I was struggling alot when coming to this part, but now im cool with it, thanks😊

[Mei.]

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

[ntsitselelemirriam]

Never thought factoring cubic is so easy ♥️

[nonhlanhlamoloi]

This Is the best .
Been struggling alot with cubic funtions for sometime now and I'm finally seeing the light,
Thank you sir🙏

[Enzyy_X]

i am loving your series so far, at least understanding. Thank you once again

[zanonoza]

Mlu, you're good at this baba . Keep shining. It's your calling ❤

[ChunSwaeRrrr]

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

[nosiphoprecioussopekisi]

You are such a life savior Bab' Mlu🤗

[FrankMaselli-ez]

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.

[tandzilematsenjwa]

Finding the middle term is a bit tricky but as I will be practising I hope it will be easier..

[Tshilidzi.m-ydjk]

Thank you sir, I was struggling with this but now I got the skill and it's the easiest.❤️

[mueededross]

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?

[rachealnkosi]

Had forgotten this thank you for the reminder

[Tizozo_M]

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

[lee.thaboo]

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🎀