SOLUTION: Find the real zeros of the polynomial function by factoring. The number in parentheses to the right of the polynomial indicates the number of real zeros of the given polynomial fun

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Find the real zeros of the polynomial function by factoring. The number in parentheses to the right of the polynomial indicates the number of real zeros of the given polynomial fun      Log On


   



Question 1201434: Find the real zeros of the polynomial function by factoring. The number in parentheses to the right of the polynomial indicates the number of real zeros of the given polynomial function. (Enter your answers as a comma-separated list.)
P(x) = x3 − 3x2 − 10x
(3)
x =

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
P(x) = x3 − 3x2 − 10x
x3-3x2-10x=0
⇒x3-3x2-10x=0
⇒x(x2-3x-10)=0
⇒x(x2+2x-5x-10)=0
x(x(x+2)-5(x+2))=0
x(x+5)(+2)=0
x=0,x=-5,x=-2