Question

Solve the polynomial function below. Help Please!

Answer 1

have you covered the "rational root test" yet?

Answer 2

divide by 4
factor out an \(x\)

Answer 3

\[x(x^3-x^2-9x+9)=0\] then

Answer 4

Factor 4x^3 out of the first two terms.
Factor -36x out of the last two terms.
combine the factors.
Equate each factor to 0 and solve for x.

Answer 5

we know \(0\) is a solution, so ignore C
then check if \(1\) works

Answer 6

\[1-1-9+9=0\] so \(1\) works too

Answer 7

that gets rid of A
now try \(-1\)