Solving a septic equation
15:03
A Functional Equation from Taiwan's International Mathematics Olympiad Training.
17:08
Solving a Quartic Equation
21:39
a * b = ab + a + b
19:30
a notorious functional equation.
31:27
EXTREME quintic equation! (very tiring)
20:37
Integrate x^-x dx
14:11
A Diophantine Equation @dhdkro
7:27