SOLUTION: How many positive real numbers are there in: f(x) = x^4 - 4x^3 + 6x^2 - 4x + 1 a. 1 or 0 b. 2 or 0 c. 4 or 2 d. 2 or 0

Algebra.Com
Question 144070: How many positive real numbers are there in:
f(x) = x^4 - 4x^3 + 6x^2 - 4x + 1
a. 1 or 0
b. 2 or 0
c. 4 or 2
d. 2 or 0

Answer by HyperBrain(694)   (Show Source): You can put this solution on YOUR website!

As you can see in the graph, it's tangent to the x-axis. Therefore, this function
has only one root!
Power up,
HyperBrain!

RELATED QUESTIONS

How many positive real solutions are there in: f(x)=x^4-4x^3+6x^2-4x+1 a)1 or 0 b)2 or (answered by jim_thompson5910)
How many positive real solutions are there in f(x) = x^4 + 4x^3 + 6x^2 + 4x – 1 Apply... (answered by jim_thompson5910)
How many positive real zeros does the function f(x) = x4 + x3 – 7x – 1 have? a) 3 or 1... (answered by fcabanski)
Please can someone help me solve the following. I would really appreciate some help.... (answered by stanbon)
Use Descartes rule of signs to determine how many positive and how many negative real... (answered by mukhopadhyay)
refer to the function f(x)=3x^3-11x^2+5x+3 Use DesCartes' rule of signs to determine... (answered by venugopalramana)
How many positive real soulutions are there in... (answered by jim_thompson5910)
How many positive real solutions are there in: f(x) = -2x^4 + 3x^3 + 7x^2 + 2 a. 0 (answered by HyperBrain)
How many positive real solutions are there in: f(x) = -2x^4 + 3x^3 + 7x^2 + 2 a. 0 b.... (answered by Nate)