SOLUTION: How many positive real solutions are there in: f(x) = -2x^4 + 3x^3 + 7x^2 + 2 a. 0 b. 2 c. 1 d. None, there is no x-term

Algebra ->  Equations -> SOLUTION: How many positive real solutions are there in: f(x) = -2x^4 + 3x^3 + 7x^2 + 2 a. 0 b. 2 c. 1 d. None, there is no x-term      Log On


   

Question 147552: How many positive real solutions are there in:
f(x) = -2x^4 + 3x^3 + 7x^2 + 2
a. 0
b. 2
c. 1
d. None, there is no x-term
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
c.
because there is only one sign change for f(x)