SOLUTION: Show that the graph of P(x) = 3x^5 - 4x^4 + 2x^3 - 4x^2 + 2x - 1 crosses the x-axis between 1 and 2

Algebra ->  Finance -> SOLUTION: Show that the graph of P(x) = 3x^5 - 4x^4 + 2x^3 - 4x^2 + 2x - 1 crosses the x-axis between 1 and 2      Log On


   

Question 1105911: Show that the graph of P(x) = 3x^5 - 4x^4 + 2x^3 - 4x^2 + 2x - 1 crosses the x-axis between 1 and 2
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
P(1) =
P(2) =
Since the sign changed between x=1 and x=2, the graph must cross P(x)=0 (the x-axis) between those two x values.