Math Forum / Mathematics / Algebra Help / October 2007

How do I fully solve this equation?
x^3 + x^2 -5x + 3 = 0
According to MS Math there are three solutions x=-3, x=1 and x=1
here is what i have so far:

How to find the center of G = all 2 x 2 invertible matrices.
help?

So, I need to know what the equation would be to solve this problem.
I don't want the answer or anything, just the STARTING equation.
"Terry has walked 3 miles. He averages 4 mi/hr. In how many more hours
will he have walked 13 miles?"

My son Dan has been very interested in Fibonacci numbers recently.  
He posits the following:
  Given the sequence of Fibonacci numbers*, in which Fx represents the
xth term in the sequence, then, for all odd values of n: