Solve this Cubic Equation | Fast & Easy Method

[pkmath]

Hey my friend! Very good explanation for cubic function for sure! Haha keep rocking my friend!

[aashsyed]

Thanks so much!!!! I appreciate it a lot!!!

[Mathspaperksks]

Fantastic video sir good job. Keep up the hard work.

[HappyFamilyOnline]

Great explanation sir👍
Thank you so much for sharing😊

[govindashit]

Thanks my Dear Sir.
Imaginary solution is new for me.

[jimmykitty]

Elegantly explained!! Thanks for sharing ❤

[tambuwalmathsclass]

My students keep asking me why the need for imaginary Solution 🤣🤣🤣
That we should just assume it doesn't exist

[ajoykumarmahato]

It was more simple.
~ x³ – 27 = 0
Adding 27 to both sides, it becomes:-
x³ = 27
Taking cube root on both sides, it becomes:-
x = 3

[dreael]

You should extend your video: Let draw all three solution into the complex number plane where the solutions are located on a regular circle equally spaced. The same applies for higher exponents. For example x^5-32=0 will result in a circle showing 5 points with 72 degree angles between.

[patemasteryt]

Me after 1sec when i saw thumbnail: x=3

[arnoldcaines]

Add 27 to both sides. 3 is cube root of 27. Simple.

[PriyanshuShil_]

X^3=27

Taking cbrt both sides

X=3

[Stephen-wcfn]

Question: for the first solution of X=3, how did he jump to X-3=0?

[jammercap]

I'm old gotta school in the 70s but I throught to solve you put x3 on one side of the equation by adding 27 to each side of the equation x3-27=0
X3 plus 27 then 0 plus 27 leaving x3*27 cube root of x3=x cube root of 27=3 therefore x equal to three what's with all the other math

[thomasmathew]

The easiest and direct way is something else.Add +27 to both sides of the equation.Then we get x^3=27.Next step take cuberoot of both sides.and we get x=3, 3 and 3

[pranjalbhowmick.]

No need to use the formula.just shift the 3^3 to the other side. Done

[peterpeggycheah]

Cube Roots X cubes n 27 cubes = X—3=0, X=3 Ans

[neilruston]

The pedant would suggest there is one real solution and two COMPLEX solutions, since the latter solutions comprise a real and an imaginary part.

[edgarmatzinger]

Yes, I know that in maths imaginary "solutions" are used. But they are called imaginary for a reason: they don't exist.