Question 283230
-3x^3 - 6x^2 + 189x

-3x(x^2+2x-63)=0

-3x(x^2+9x-7x-63)=0

-3x(x(x+9)-7(x+9))=0

-3x(x-7)(x+9)=0

(x-7)(x+9)=0/-3x

(x-7)(x+9)=0

x=7 or-9