Japanese | Can you solve this ? | Math Olympiad

[@davidseed2939]

now many times have i seen a problem of this style which ends in the golden ratio 1+y=y² is obvious when you’ve seen so many in this style.

[@devondevon4366]

Since 9/15 or 3/5 is the recipricol of 25/25 or 4/3, I see a way to solve it by dividing both sides by 9.

[@K.Klogic]

Good

[@josepherhardt164]

Before even watching: I smell a hidden quadratic.

[@starpawsy]

9 and 15 are both odd, so integral powers will be odd. The sum of two odds is even. 25 is odd so any integral power will be odd. Thus there is no integer solution. So ... next video!

[@YAWTon]

True, but the question was "can you solve this?", not "are there integer solutions?"

[@Mosalud]

Why ignore the -ve side of the quadratic solution of Y ?? - didn't understand.

[@K.Klogic]

Because of negetive root

[@zonked1200]

@@K.Klogic negative root.

[@lucasrct]

@@K.Klogicdid the question ask for real solutions?

[@alegoncalves472]

Wow!!!

[@K.Klogic]

Thank you

[@zonked1200]

Dude, spring for a second sheet of paper.