SOLUTION: Solve the equation w^3 + 5w^2 - w = 5

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Solve the equation w^3 + 5w^2 - w = 5      Log On


   

Question 97787: Solve the equation
w^3 + 5w^2 - w = 5
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
w^3+5w^2-w=5
w^3+5w^2-w-5=0
w^2(w+5)-(w+5)=0
(w^2-1)(w+5)=0
(w+1)(w-1)(w+5)=0
w+1=0
w=-1 answer.
w-1=0
w=1 answer.
w+5=0
w=-5 answer.