Math Is Fun Forum

I hope so. I cannot see any mistakes so far.

Hi bobbym

Done. There might be mistakes though, so there may be more solutions.

Hi

Hi she taco

Welcome to the forum!

Hi Bob

I am getting those answers, too.

Nessun problema.

Well,

7^3, no. 11^3  neither, but I can calculate that one pretty quickly in my head.

I agree on 6^3, though, because everyone who does even a little bit of combinatorics will see that number.

10^3 is pretty straightforward.

I agree on 6^3. I'm not sure why you would need 7^3 and 11^3, though.

For a quadratic to always be positive you need:

For a quadratic to have positive roots, you need the conditions Agnishom posted, except, the second condition should be

Hi bobbym