Question

What are the zeros of the polynomial function: f(x) = x^3 – x^2 - 12x ?

Answer 1

\(x=0\) is one by inspection

Answer 2

so -4 and 3 would be the others?

Answer 3

so you can factor as \(f(x)=x(x^2-x-12)\) and find the other two by factoring

Answer 4

= x(x^2 - x - 12)
x= 0

Answer 5

i think you might have the signs wrong, lets check

Answer 6

yea and 2 more - as satellite indicated