Answer:
[tex]\boxed{\bold{-6x\left(x^2+2x+3\right)}}[/tex]
Step By Step Explanation:
[tex]\bold{x^2=xx}[/tex]
[tex]\bold{x^3=x^2x}[/tex]
[tex]\bold{-6x^2x-12xx-18x}[/tex]
[tex]\bold{-6x^2x-6\cdot \:2xx-6\cdot \:3x}[/tex]
[tex]\bold{-6x\left(x^2+2x+3\right)}[/tex]
[tex]\boxed{\bold{Mordancy}}[/tex]