Answer:
A) (3x -3y)²
Step-by-step explanation:
9b -18a = 9(x² +y²) -18xy
= 9x² -18xy +9y²
= (3x -3y)² . . . . . matches choice A
yes
all I know is how to get y but y=122
y=3(40)+2
y=120+2
y=122
sorry but I dont know what to do for x
Where is The question at? O_O
