SOLUTION: Given that one of the zeros is -3, find the other zeros for this polynomial function: {{{f(x)=x^3+x^2+2x+24}}}

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Given that one of the zeros is -3, find the other zeros for this polynomial function: {{{f(x)=x^3+x^2+2x+24}}}      Log On


   

Question 122574: Given that one of the zeros is -3, find the other zeros for this polynomial function: f%28x%29=x%5E3%2Bx%5E2%2B2x%2B24
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
if -3 is a zero, then x+3 is a factor __ (x^3+x^2+2x+24)/(x+3)=x^2-2x+8

x^2-2x+8=0 __ not factorable __ use quadratic formula to find zeroes