No nikhil sir it works . You can take 2 as common then equation will become x^3-5x^2/2-7x+4 The number found using the tricks will be -1/2, -4, 2 Sor roots (zeros) will be 1/2 , 4,-2
This is only for cubic equation with all integral roots so it would be handy in some questions but in olympiads it can't be used as there all roots used to be imaginary
In that case divide polynomial by coefficient of x^3 if terms are comming integers and integral roots are lying on same side of origin then you can use this method
Thank you bhai me competitive exam ki tyari kr rha tha but muje ae basics hi nhi aata tha bhut channel pe dekha Khi nhi easy sikha rhe the Aapka bhutt aasaan he Thank you again
Iss method se sabhi question solve nahi ho payega, isse wahi question solve hoga jiske root integer hai aur sabhi root ya to positive ho ya negative ho agar mix integer root ho to bhi ye tarike se muskil hoga, aur complex root to iss tarike se nikal hi nahi payenge
nice video, but here since abc = 12, it was easy to factor, but what if the number is big with many factors, then wouldnt it be a lot of time to find the factors, especially in competitive exams ?
i wasn't know any minor detail about this cubic equation and already watched 3 youtube videos but didn't get any word they say... and then i reached to your video sir you are amazing... such a simple method that any new student with zero idea can get you
this will only come handy when solving for eigen values and eigen vectors. Thank you for this trick.
i actually came for eigen values 💀
Right bro I'm also for Eigen value and Eigen vector
It doesn't work for 2x³-5x²-14x+8
Yes bos
No nikhil sir it works . You can take 2 as common then equation will become x^3-5x^2/2-7x+4
The number found using the tricks will be -1/2, -4, 2
Sor roots (zeros) will be 1/2 , 4,-2
Sir Please mention that this trick has limitations means applicable only certain type of polynomials so that we not get confused. thanks
Yes, it does not apply everywhere.eg 6x3-x²-19x-6=0
yes right bro
Yah
@@lovesingh7364 and also when there is no constant
thank u bro
You should have mentioned that the coefficient of x³ must be 1.
Lol,You can make it by dividing the suitable number
Sir aapki trick se ye ques solve nahi ho raha 👇🏻
x^³-9x^²+11x-1=0
Ye nahi ho raha solve 🙄🙁☹️
2 marks ke question ban gaye
4x³ - 12x² + 24x +1 = 0
What about this? I feel like this has 2 imaginary roots and one real root....but what is the real root?
Bro 1st real root will be (-0.04082).
And rest two roots will be imaginary...
👍🏻🙂
@@namandubey5934 How did you calculate the real root? (thanks btw)
For cubic short tricks
Agar last me odd number ho to uske factor to do hi ayega phir EX-5
2x³-5x²-14x+8=0 solve this
Thanku sir a lot apne tension khatam kardi
A lot of thanks sir
Thanks very much sir
How can we apply this trick when there is coefficient of x³ except 1?
plz solve this cubic equation x^3 -7x^2 + 16x-12=0
Sir Can you pls post the steps for this solution.
I also need this type of question.
12 = 2*2*3
2+2+3=7 which is coefficient of X^2
2*2+2*3+3*2=16 which is coefficient of X
Super trick 😮 thanks sir for our big help😊
Keep watching
Thank you sir
Thanku sir 🙏🙏🙏
Excellent
This trick is best
Thank you sir 👍🏻👍🏻👍🏻👍🏻
thank you sir
Very nice thank you so much for saving our time.
This is only for cubic equation with all integral roots so it would be handy in some questions but in olympiads it can't be used as there all roots used to be imaginary
It is applicable for some cubic polynomials.....
Good
Thank u bro
Cubic equation par artificial intelligence🤖🔬 ka use karwa do phir sari duniya💻 following💻 karegi🎉🎉🎉
Sir, could you please solve this equation x^3-3x^2-4x-2=0
Roots are 1,1,2
Thanks Sir
Tnx
amazing
Very helpful trick and i solve this type question on one second thanks ❤❤ for this excellent video
helpful
Thank you so much sir😭😭😭😭😭😭 u really saved my time😁😊😊😊 and cleared my doubts 🙏🙏🙏
Thank sir
Love you sir
Wbat if the constant of x^3 is more than or less than 1 ?
In that case divide polynomial by coefficient of x^3 if terms are comming integers and integral roots are lying on same side of origin then you can use this method
it does not apply everywhere.eg 6x3-x²-19x-6=0.give solution of it
can anyone solve this question:
x^3 -7x^2 - 58x +150=0
Excellent trick.
X3+ 3x2-3x-2
What's the solution for that?
When sum of product of two root are unequal to coefficient of x
Sir mind blowing trick
This always trouble me earlier. Thank you so much sir for this easy trick....
sir ,what if there is no coefficient of x are given eg. d^3-1 etc ..
This is so simple dude🤣🤣🤣🤣 can't solve this???
Thank you bhai me competitive exam ki tyari kr rha tha but muje ae basics hi nhi aata tha bhut channel pe dekha Khi nhi easy sikha rhe the Aapka bhutt aasaan he Thank you again
X^3-6x^2+5x-12=0. Iska roots kasa ayaga
What about x³-x=6?
Use Cardano's formula
X³ - 9x² + 26x - 24 = 0 please solve this question
Iss method se sabhi question solve nahi ho payega, isse wahi question solve hoga jiske root integer hai aur sabhi root ya to positive ho ya negative ho agar mix integer root ho to bhi ye tarike se muskil hoga, aur complex root to iss tarike se nikal hi nahi payenge
nice video, but here since abc = 12, it was easy to factor, but what if the number is big with many factors, then wouldnt it be a lot of time to find the factors, especially in competitive exams ?
Definitely
Sir mera different answers aa rha hai 😭😭😭😭😭😭😭😭😭
This rule is not applicable on all cubic polynomials
Great 🙏🙏
Acha Acha
Roots fraction me honge
Tab kaise karoge bhai
Very very helpful trick 💯💯 thank you sir.
Sir jam complex roots a Rahi hoo tab kia mara
D=prime number what will we do
👍👍👍👍
Nice
Very nice class
X³-3x²-9x-5 do it with this method
Thanku so much it will help a lot
X^3-5x^2+8x-4 , find its roots by your method 👍
1 2 2 in case of inequality (1,2)u(2 infi) is ans
X=1
1-5+8-4=
-4+8-4=
4-4=0
Good
Put video for next sem
Thank you ☺️
Woah!
Thankss
Thx sir
Nice trick .it's working
Great sir
Tum thik se details mai bataya kro
Very nice explained thank you very much sir ji.🙏
Not for all equations
1no. Bhaiya ❤️ maza agya
10000! Kya hoga
What about this type of cubic equation
8X^3-140x^2+808x-1540 ??
Exam me Bina calculator ke kese kare ?
Dhakad bhai dil se 💛
brilliant trick
Find the roots for x^3+9x^2+24+22=0 ? Is it possible by using trick?
Very very thanks sir
Thanks .
But Tell me one thing
If x cube has any coefficient (not 1) then how can I solve it?
Divide each factor by the coefficient of x^3 and then check as usual
@@RahulGahtori-ey4ht
Thank you
But what can I do if x^2 and x terms are missing
What if roots are equal?
U didn't explain the case where more than two factors satisfies 1st and 2nd condition but one factor does not satisfy 3rd
Thank u sir
Gazab
Nice .....
Exc
2xcube +7xsquare -4x+15 .please solve it
thanks sr
Well done sir
Thanks bhia
sir nai hora yaar help kardo
Sir agar equation minus main rahe tho or Cube ka coefficient any constant rahe tho kase kare please Sir eske upar ek video banaye 🙏🙏🙏
if there is a term in front of x³?
example: 3x³. how to calculate the roots?
👍
👍👍
How to solve x^3 -8x^2+17x-6=0
X3-5X2-32X+64=0. How will we find the root for this equation?
Good to see you back
i wasn't know any minor detail about this cubic equation and already watched 3 youtube videos but didn't get any word they say... and then i reached to your video sir you are amazing... such a simple method that any new student with zero idea can get you