Factorize completely X2+2XY+Y2+3X+3Y-18
...Factorize completely X2+2XY+Y2+3X+3Y-18
(x + y + 6)(x + y -3)
(x - y - 6)(x - y + 3)
(x - y + 6)(x - y - 3)
(x + y - 6)(x + y + 3)
Correct answer is A
x2+2xy+y2+3x+3y−18
x2+2xy+3x+y2+3y−18
x2+2xy−3x+6x+y2−3y+6y−18
x2+2xy−3x+y2−3y+6x+6y−18
x2+xy−3x+xy+y2−3y+6x+6y−18
x(x + y - 3) + y(x + y - 3) + 6(x + y - 3)
= (x + y - 3)(x + y + 6)
= (x + y + 6)(x + y -3)
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