Japan 🇯🇵 Math Olympiad Question | a nice algebra problem

[@ikarienator]

There's no way this is an Olympiad problem.

[@francislauerBR]

Why?

[@Misfer-fn7qq]

​@@francislauerBR it's easy even for a school level olimpiad question

[@bobbyheffley4955]

After you move -1 to the left side, you can factor the equation by grouping.

[@2sljmath]

🫶🏽

[@williamwarren5234]

move one to the other side, use geometric series sum, the answer is clearly then the 6th roots of unity excluding 1

[@ManojkantSamal]

X=(-1)

[@ლიასუთიძე]

ძალიან უკულტუროდ წერენ, აჯღაბაჯღად.

[@2sljmath]

...

[@yuvalnachum4190]

could have solve after the first factoring .