Question

Polynomial Functions

Answer 1

I need to find the rational zeroes for this polynomial:
\[f(x)= x ^{3}-2x ^{2}-13x-10\]
I got \[\pm10, \pm5, \pm1, \pm2\] for possible answers..

Answer 2

Set x³−2x²−13x−10 to be equal to 0. Plug in your possible answers and solve it.

Whatever that is true is one of your answer.

I know it takes time, but that I would do if I were you.

Answer 3

SO basically you have to plug in ALL of the values? Like all 8 of em?

Answer 4

Yeah.

I'm pretty sure there is a shortcut for this, but I cannot remember, sorry.

Answer 5

Ok.. thanks