A Nice Math Square Root Simplification Problem | How To Solve | You Should Know This Trick...

[@arturovinassalazar]

I did it this way: (v3-v12)/(v3+v12)= (v3-2v3)/(v3+2v3)= -v3/(3v3)= -1/3

[@christoffussenegger9377]

Exactly, straight forward approach. I did roughly the same, it took me less than 10sec to get the answer, no need for an 8min video.

[@FeLiNe418]

8 minutes for an operation I did in 5 seconds in my head. lmao

[@와우-m1y]

asnwer=(1/+/4 ) (1-/4) isit

[@와우-m1y]

asnwer=1/3 isit hmm gmm

[@TheEulerID]

It helps if you explain why you are multiplying by the (√3 - √12) rather than just do it. The reason why we choose to do it is explicitly to use the (a+b)(a-b) = a^2-b^2 equality in order to get rid of the square roots in the divisor. Yes, you show that what's happens, but it is much, much better to explain why you are doing it in the first place. So it would be much better to explain the thinking first, and not make it just appear as the result as if by magic.