xy +2ay +3ax+6a2=?
A
x(x+a)(y+3a)
B
(x+7a)(y+3a)
C
(x+5a)(y+3a)
D
(x+2a)(y+3a)
Correct Answer: (x+2a)(y+3a)
xy + 2ay + 3ax + 6a² = y(x + 2a) + 3a(x + 2a) = (x + 2a)(y + 3a)