Posted by **Emily** on Monday, March 5, 2012 at 8:17pm.

Show that the equation x^4 + 4x + c = 0 has at most two real roots.

I believe we're supposed to prove this by proof of contradiction using Rolle's Theorem, but I'm not quite sure how to do this problem.

## Answer this Question

## Related Questions

- calc - by applying rolle's theorem, check whether it is possible that the ...
- Calculus - By applying Rolle's theorem, check whether it is possible that the ...
- Math help please - In this problem you will use Rolle's theorem to determine ...
- Math - Calculus - Show that the equation x^3-15x+c=0 has at most one root in the...
- Math - Calculus - Show that the equation x^3-15x+c=0 has at most one root in the...
- AP Calculus - Show that the equation x^3 - 15x + c = o has exactly one real root...
- Math - Let f(x) = 2x + 1 − sin(x), how many roots does f(x) have in the ...
- Calculus (Please Check) - Show that the equation x^5+x+1 = 0 has exactly one ...
- CALCULUS! - suppose that 3 <_ f prime of x <_ 5, for all values x. show ...
- calculus - Show that the function f(x)=4x^3−15x^2+9x+8 satisfies the ...

More Related Questions