When mathematicians get bored (ep1)

How teachers set the paper...

Genius

Answer to question

This is an example of why math should not be taught after drinking one bottle of vodka

Let Him Cook

À la Ramanujan 😂

x = 5
x - 5 = 0, but x = 5
so 5 -5 = 0
so x = 5 is correct

😫😫😫

Also x = -4

a=√(a²-a+√(a²-a+√...))

haha

Broooooooo it hurts my brain hehe

That is correct

But wldnt that mean that infinite root thing is -4 as well 🤔 cz you multiplied by (x+4) as well since (x-5)(x+4)= 0 or is it cz we took principal root (+ve root) we get only 5 out instead of -4 cz theres no negative onvolved with the root?

x was just 5.

x= ±5

那个无限嵌套的式子极限是5

You can go from the other side as well, define x = root(20+...)
Than x squared = 20 + root(...)
Than x^2 - 20 = x
x= 5

Definition of creating your problems 🤦🏽‍♂️

blud problemed a solve 😂

Footage of me trying to solve things thay are already solved and making it worse

Wow ThAT iS cOmpLacAtEd MatH!

X = 5
=> x = 5

IN Philippines is x=10

HOW

I've been telling people for ages that x = -4 is a solution to x =5! Why didn't bprp back me up here when he found the hidden quadratic?!

there are some more justification needed for this. 3b1b has a great video explaining stable points and unstable points using derivatives and the jacobian. basically, a series has a stable converging point(changing the input a little still makes it converge) if the derivative modulus < 1 and unstable if modulus > 1. the case derivative is 1 then the test fails and you need something more complicated.

It is an equation raised to the power of 2 and is not solved this way.
The method is as follows
=(-1)² -4(1*(-20)
=1+80
=81

=1+√81/2
=1+9/2
=10/2
=5

You already got the answer you are just crating a question

Square both sides

And the rest is self explainatory

hes the student who wabt prove that equation 0=0 true💀

Me: blink in class
My professor:

And your beard never stopped growing.

I had this question in my final exam at gradeschool....final equation was given and we gad to find value for X

“why don’t you do the equation the teacher’s way”

the teacher’s way:

Ah, yes 5=4=1=900=666=-789

The root square one is nice and easy,example:the root square of 25 equals to x+20

He is problem-ing the solution

Pov : you're a teacher making a test

Who didn't understood 😂😅

why tho

where does and how the x+4 come up

In the simplified poly, its also x = -4 that causes it to be zero, neat way to find x intersects without graphing polynomials, x being the input, y is the output, y being zero means the point is sitting on the x line, just gotta find all X exist in domain that Y = 0, iirc, highest power of the poly= amount of intersects, not sure of that last one

My head: 📈📉📈📉

WHAT???????????????

X=y this rezults that x= sqrt(y²-y+sqrt(y²-y and so on)

In step 3 didnt u introduce a solution that wasnt there before x=-4

For those who don't know and you don't wanna do the math x is 6
















It's a joke don't give hate

This is not correct. If you take square root from x^2 that will not be just square root from 20+x, but also minus of that. 2 solutions, not just one. Honestly this is weird af. But I get your point.