Question 669091
-(3x-3)^2 


-(3x-3)(3x-3)


-(3x(3x-3) - 3(3x-3))


-(9x^2-9x - 9x+9)


-(9x^2-18x+9)


-9x^2+18x-9


So -(3x-3)^2  is equivalent to -9x^2+18x-9