Answer:
[tex]x^3-9x=x(x-3)(x+3)\rightarrow\text{ Option two}[/tex]Explanation: We need to factor out the given completly, it can be done as follows:
[tex]Given\rightarrow x^3-9x[/tex]Factoring completley give us:
[tex]\begin{gathered} x^3-9x=x(x^2-9)=x(x^2-3^2)=x(x-3)(x+3) \\ \therefore\rightarrow \\ x^3-9x=x(x-3)(x+3)\rightarrow\text{ Option two} \end{gathered}[/tex]The answer, therefore, is Option two:
