f(x) = x^3 + 2x + k. Prove that every function of this family has exactly one real root

f(x) = x^3 + 2x + k. Prove that every function of this family has exactly one real root

Hey! We 've verified this expert answer for you, click below to unlock the details :)

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

thanks, but you didn't prove that the function has roots or not ?

the very fact that the derivative is positive and its an odd-degree fn shows it has atleast one root

Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

Looking for something else?

Not the answer you are looking for? Search for more explanations.