3
17:24
A Perfect Olympiad Algebra Problem
12:52
Test d'entrée à l'université de Harvard
17:05
Germany l can you solve this?? l Olympiad Math exponential problem
45:31
Harvard entrance exam question | Only 5% of students solved it correctly
11:09
Olympiad Math||Fast Method for Solving Olympiad Polynomial Equations
11:19
Can YOU find the number? – Math Puzzle
20:59
A very nice olympiad question | How to solve (4 + \sqrt{5})^x + (4 - \sqrt{5})^× | Algebra |
15:38