SOLUTION: Factor the following expression completely given that one of the roots is 8: w^3-8w^2-9w+72

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson  -> Lesson -> SOLUTION: Factor the following expression completely given that one of the roots is 8: w^3-8w^2-9w+72      Log On


   

Question 1182596: Factor the following expression completely given that one of the roots is 8:
w^3-8w^2-9w+72
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!

w%5E3-8w%5E2-9w%2B72
w%5E2%28w-8%29-9%28w-8%29
%28w-8%29%28w%5E2-9%29
(w-8)(w+3)(w-3)