- #1
grapeape
- 10
- 0
Homework Statement
Show that f(x) = x^4 + 4x + c = 0 has at most 2 roots.
Homework Equations
The Attempt at a Solution
I'm not really sure how to approach this problem, I think I have to use the IMVT / Rolle's Theorem / MVT.
Any help to even get me started would be greatly appreciated!