Recent content by Bonk

I have a problem: Knowing that 1^2 + 2^2 + 3^2 + ... + n^2 = \frac{n(n + 1)(2n + 1)}{6}and that 1^3 + 2^3 + 3^3 + ... + n^3 = \frac{n^2 (n + 1)^2 } {4}, calculate 1^4 + 2^4 + 3^4 + ... + n^4. Please, help me!