A cubic polynomial can’t have more than 3 solutions, I understand why he had to combine ( x^2 + 3x + 9) +(x+3). The multiplicity of (x-3) is 1 therefore it crosses through the point (3,0) and doesn’t bounce off it. Makes sense it has 1 real and 2 imaginary solutions.
Its easy if you do X^3+x^2-36 You can try from 1 to calculate...if the answer is 0 then that will be the answer so X^3+x^2-36 3^3+3^2-36 27+9-36 0 Answer is 3
Se l'equazione ammette soluzioni razionali, esse vanno ricercate tra i divisori di 36. A tentativi si trova x = 3. (x^3+ x^2 - 36) : (x - 3) = x^2 + 4x+ 12. Uguagliando a 0 si trovano le soluzioni complesse.
Add the Bahasa Indonesia language to your keypad. When you press the numerals longer, you'll see smaller numerals for exponents and also, you'll get to write fractions properly...
Under the square root there is always a positive number. So there will never be solution for the secondary equation. So the only solution of the equation is x=3
Задача хорошая и сформулирована корректно, только не люблю я искусственных приемов. Ну явно же автор знал, что x=3 будет решением. Явно же подставлял делители свободного члена. А потом можно было просто поделить левую часть уравнения в столбик на x-3 и получить квадратный трёхчлен. И всё.
In real numbers without imaginary numbers, the answer is 3. x = 1 --> 2 x = 2 --> 12 x = 3 --> 36 x = -3 --> -21 If you substitute from 1, you can easily find the answer is 3. Substituting -3 gives -21.
Нет, в этот раз всё нормально. С самого начала было сказано, что надо найти все три корня. Это, кстати, в подобных видео не всегда соблюдается. А тут задача поставлена корректно. ОК.
One simple math problem simple Englishes ...triple x was 9 . double x was 4 the total result about that problem was 36 or this second solution x3.x2 total x6 or 6.6 tolal score 36
I made that by Brio Ruffin Tool, and lefted 3, so, I Discovery de something, we have X²+4X+13=something, but what is This something? IS the left splited by the root, and, at least in that case, is 3÷3, what is 1, so, we have X²+4X+13=1, consequently, X²+4X+13-1=0 and X²+4X+12=0
Who wasn’t even thinking about being here but found themselves looking just to remember 😂😂🙈
Who else was scrolling with me and mistakenly saw this😂😂😂
Me😂😂
Está bueno
The crazy part is that I clicked on it😅.
I'm gradually becoming a nerd😢
Me😂
Aswear😂😂
Thank for sharing
@wansolve how about this
ua-cam.com/video/vnZscJ-y1qE/v-deo.htmlsi=muYNaZQ-UOgd6-Os
Well done ✅👍
Thanks so much
@PhilCoolMath You're very welcome. Keep up the good work as well 👍
This is very very profound for me
Welldone
Maybe if I was given the sum I could have solved in not less than a minute. Are we in the same bracket. 😂😅😅
4:17 when he said ehh 😂😂😂😂😂
Nice one
I don’t know why I keep watching these videos 🫠
Having my exam next week,I hope this is helpful,wish me good luck guys
x³+x²=36; solution;x³+x²-36=0;x³+x²-27-9=0; x³-27+x²-9=0; x³-3³+x²-9=0; (x-3)(x²+3x+9)+(x-3)(x+3)=0; (x-3)[x²+3x+9+x+3]=0;(x-3)[x²+4x+12]=0; x-3=0; x=3; x²+3x+9; S={3}.
How about in an exam taking so much time on a simple question?
Very true
Используем схему Горнера: x=3 или x^2 + 4x + 12=0. => x=-2-2V3*i; -2+2V2*i.
Thank you, bro. Your solution to the maths is very understandable 😂😂😂. I just stumbled on it when scrolling 😅.
Good Job Man, but the question is how this can help us now in street?
A cubic polynomial can’t have more than 3 solutions, I understand why he had to combine ( x^2 + 3x + 9) +(x+3). The multiplicity of (x-3) is 1 therefore it crosses through the point (3,0) and doesn’t bounce off it. Makes sense it has 1 real and 2 imaginary solutions.
Sasa mbona math iko kwa fyp yangu na sijaisearch?😂😂😂
😅😅😅 reminds me faaarrrrrr awaaaaayyyy.... MPAKA KICHWA KIMENIUMA😂😂😂
😂😂😂😂
Los protones no se escapan en su embullición de nuevas Protoestrellas.
x³ + x²= 36
2x⁶= 36
2x= ⁶√(36)
2x= 36^ (¹/₆)
2x= 36/6
2x= 6
x= 6/2
x= 3 √
x³ + x²= 36
3³ + 3²= 36
27 + 9= 36 √
Am here to remember what I was doing but am looking clearly but I don’t remember anything 😂😂
Its easy if you do
X^3+x^2-36
You can try from 1 to calculate...if the answer is 0 then that will be the answer so
X^3+x^2-36
3^3+3^2-36
27+9-36
0
Answer is 3
Some lectures actually give there marks with your working not d final answer
Se l'equazione ammette soluzioni razionali, esse vanno ricercate tra i divisori di 36. A tentativi si trova x = 3. (x^3+ x^2 - 36) : (x - 3) = x^2 + 4x+ 12. Uguagliando a 0 si trovano le soluzioni complesse.
I love this
I did watch but yoh I still don't understand
Mathematics😢😢😮
I don't what to say but good job keep doing what you are doing 👏
Thank you, I will
X^3+x^2=36
X^3+x^2=27+9
X+x=3√27+2√9
2x=3+3
X=6/2
X=3
3^3+3^2=36
27+9=36
X³ + X² =36...
Would you like to know how to write exponents like these? 😊
@@tonymalaluan How pls?
@@tonymalaluanHow pls?
Add the Bahasa Indonesia language to your keypad. When you press the numerals longer, you'll see smaller numerals for exponents and also, you'll get to write fractions properly...
@@tonymalaluan x³ + x² = 36
Thank you. I never knew I had that on my keypad until now.
3 x 3baraz 9x3baraz 27 plus 3x3 baraz me 9 plus 27 baraz 36
The easiest way to solve this is polynomial instead of going through this long process lol😂
I thought the same 😂😅😀
Ah used to be good at this 🥰❤️😍
Hi, you've ever studied finance?
💯
You know what let me continue selling fruits n vegetables 😮😂😂
you should do this over again. should it be -9 vs 12 I didnt get the same answer
We are many brother
It seems that there was a mistake, leaving out the minus sign on the coefficient of "b" in the first step.
3 elevado a la 3 : 27
3. elevado a la 2. : 9
27 +. 9. : 36 .
The answer is 3.
X = 3.
But I don't know how to work it out.
Please sir do u have some group
This just popped up for me..don't know why..not in school anymore.
Please sir do you have some group l want to join
Under the square root there is always a positive number. So there will never be solution for the secondary equation. So the only solution of the equation is x=3
Meanwhile Chinese are manufacturing car engines 😢
Who saw the answer in 2 lines like me
Задача хорошая и сформулирована корректно, только не люблю я искусственных приемов. Ну явно же автор знал, что x=3 будет решением. Явно же подставлял делители свободного члена. А потом можно было просто поделить левую часть уравнения в столбик на x-3 и получить квадратный трёхчлен. И всё.
@@DedMatveev A как решается по Вашему методу?
I will try using your method
@@Misha-g3bx=±1;±2;±3
=> (x³+x²-36)÷(x-3)=(x²+4+12) => x=2(-1±vʼ2i)
@@Misha-g3bx=±1;±2;±3 !!!
=> (x³+x²-36)÷(x-3)=(x²+4x+12)
=> x=2(-1±vʼ2i)
[ 36÷(±1;±2;±3;±4;±6;±9;±12;±18;±36) ]
I think it's easy to see that 3³+3²=36 then from there, you divide the polynomial x³+x²-36 by x-3 then have a quadratic and solve?
Where did you get the Root -1 from?
Law of surds √-32=√32x√-1
From the 4
ua-cam.com/video/vnZscJ-y1qE/v-deo.htmlsi=BCem5Gb77ZKn3fOR
X is equal to 3
In real numbers without imaginary numbers, the answer is 3.
x = 1 --> 2
x = 2 --> 12
x = 3 --> 36
x = -3 --> -21
If you substitute from 1, you can easily find the answer is 3.
Substituting -3 gives -21.
3 is the most correct. .if you substitute the equation ,it balances
But how does these X help in real life😂😂😂just giving headache for nothing 😢
What is this guy doing?
X=31
Not really
I just find myself here bumm 😂😂😂
Great aolition to a great problem. Burned my head but still helped a lot.👏👏👏
Ay khona ithini topic yalezibalo phela kwa maths wawushawa uku aplyer method e wrong kwi topic okungesiyo
X is 3
Please how do you make your videos? I am a teacher and want to start online teaching
With a camera fixed on top of a paper. Or online with some tablet, screen recorder, and apps like Miro
3^3+3^2=36
27+9=36
X=3
The head is paining 👁️
🤣🤣🤣🤣🤣🤣🤣🤣
3, if x is from R.
Нет, в этот раз всё нормально. С самого начала было сказано, что надо найти все три корня. Это, кстати, в подобных видео не всегда соблюдается. А тут задача поставлена корректно. ОК.
@@DedMatveevА др. 2 корня - это мнимые числа, находимые как корни квадр. уравнения x²+4x+12=0.
Thanks
Thanks
lol who was your math teacher in college?😆😅🤣😂😂
Nice, but too long.
This can be solved in less than 2 mins.
Apply Newton-Raphson method
God go judge una
X baraz me 3
3.3 =9 y 9.2= 18, 18 + 18= 36
X. : 3. .
no definition`? reel or complex?
X^3+x^2=36
X^3+2=36
X^5=(2^2)(3^2)
X=5√36
Took me less than 15s to determine that X =3,
If this were a six mark question on an exam, you would get one mark for that answer. Cubic equations must have three solutions. Working must be shown.
Why complicate simple maths...just find x
😅
ua-cam.com/video/vnZscJ-y1qE/v-deo.htmlsi=BCem5Gb77ZKn3fOR
(x-3) this was skipped also
It was solved just before he found the imaginary answers.
He didn't skip it, it was factorised.
This real confusing
Thank you,am from Tanzania,how may I meet with you even in WhatsApp, because I need more about mathematic,help me
Quick trial and error gives answer 3 within 10 seconds. Lucky but effective.
X= 3. Muy sencillo. Lo aprendí en la escuela pública.
x=2 or x=-3
Too long bro
😂
🥳for x even though I don't know complex number
3cubed plus 3squared
10 и 3.
Bah levar10 minutos uma conta que o cara faz a cabeça em 15 segundos
Why take so much time on a simple question
3
This the desease of national
X=3.
Why this way ?
How about this
ua-cam.com/video/vnZscJ-y1qE/v-deo.htmlsi=BCem5Gb77ZKn3fOR
One simple math problem simple Englishes ...triple x was 9 . double x was 4 the total result about that problem was 36 or this second solution x3.x2 total x6 or 6.6 tolal score 36
😸 Good morning
How did he get 27
I made that by Brio Ruffin Tool, and lefted 3, so, I Discovery de something, we have X²+4X+13=something, but what is This something? IS the left splited by the root, and, at least in that case, is 3÷3, what is 1, so, we have X²+4X+13=1, consequently, X²+4X+13-1=0 and X²+4X+12=0
x=3
3x3x3=27 , 3x3=9 , 27+9=36. Perché complicare le cose?
Можно проще вынести х² за скобку и решить через или
Long way
Mmmmmmh your wrong 😂😂😂😂 folish man😢😂
You made a great mistake bro
Hmm! Answering 1 questions for 10 min. It is well o
x3 +x2=30
X2(x+1)=36
X(x+1)=6
X2 + x -6=0
(X+3)(x-2)
X=-3 or x=2
I don't know if thts allowed 😂
Same here 😂
This is not correct
I simpley squared the 3 =9 and squared the 2=4 sow 9×4=39😂😂😂😂😂😂😂😂
х=3.😂