SOLUTION: exercises, use the given information about the polynomial graph to write the equation. Degree 3. Zeros at x= - 5, x= - 2, and x=1. y-intercept at (0,6)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: exercises, use the given information about the polynomial graph to write the equation. Degree 3. Zeros at x= - 5, x= - 2, and x=1. y-intercept at (0,6)      Log On


   

Question 1197669: exercises, use the given information about the polynomial graph to write the equation. Degree 3. Zeros at x= - 5, x= - 2, and x=1. y-intercept at (0,6)
Answer by josgarithmetic(39627) About Me  (Show Source):
You can put this solution on YOUR website!

%28x%2B5%29%28x%2B2%29%28x-1%29

Factor also needed, maybe call it a.
a%28x%2B5%29%28x%2B2%29%28x-1%29


Using the given intercept to find factor , a.
a%285%29%282%29%28-1%29=6
%28a%29%285%29%28-1%29=3
a=-3%2F5

The polynomials is, before multiplying to see, -%283%2F5%29%28x%2B5%29%28x%2B2%29%28x-1%29.