Question

Find the zeros of the polynomial function.

f(x) = x3 + 5x2 - 4x - 20

Answer 1

are you sure it isnt x^3?

Answer 2

try 2

Answer 3

pretty sure that \(f(2)=0\) check it
then you can find the other two easily

Answer 4

Yes youre right I meant x^3 and 5^2

Answer 5

**5x^2

Answer 6

did you try \(f(2)\) ?

Answer 7

This is an important life skill. this is how I met my wife actually. I factored a cubic and next thing I know we're having a baby. Man life's cray-cray some times.

Answer 8

or just cheat

Answer 9

Here's cheats:

http://www.wolframalpha.com/input/?i=roots+f%28x%29+%3D+x3+%2B+5x2+-+4x+-+20