Question

one zero of f(x)=x^3+2x^2-5x-6 is 2. what are other zeros of the function.

Answer 1

factor

Answer 2

then use the quadratic formula if you need to
since one of the zeros is \(2\) you know
\[x^3+2x^2-5x-6=(x-2)(something)\]

Answer 3

you can find the "something" a polynomial of degree 2, by
a) long division (ick)
2) synthetic division ( very quick)
3) thinking about what it has to be

Answer 4

would the answer be 2 and -3?