Posted by Denis Borris on September 25, 2002 at 16:29:52:
In Reply to: proof posted by Marin on September 25, 2002 at 14:18:55:
: How can I prove there is no integer solution to x^4 + 3x^3 = 1120 ?
: Thank you.
Huh? that's about same as proving no integer solution for 2x = 5
x=-7: 1372
x=-6: 648
x=5: 1000
x=6: 1944
so no integer solution: get it?!