SOLUTION: find the zeros of the polynomial function f(x) = x^3 + x^2 - 42x

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: find the zeros of the polynomial function f(x) = x^3 + x^2 - 42x      Log On


   

Question 629521: find the zeros of the polynomial function
f(x) = x^3 + x^2 - 42x
Answer by reviewermath(1029) About Me  (Show Source):
You can put this solution on YOUR website!
Solve for x: x%5E3+%2B+x%5E2+-+42x+=+0
x%28x%5E2+%2B+x+-+42+=+0%29
x%28x+%2B+7%29%28x+-+6%29+=+0
x = 0, -7, 6
The zeros are 0,-7 and 6.