Practice problem
Factor xy+3x+4y+12xy+3x+4y+12xy+3x+4y+12.
(x+1)(y+12)(x+1)(y+12)(x+1)(y+12)
(x+2)(y+6)(x+2)(y+6)(x+2)(y+6)
(x+3)(y+4)(x+3)(y+4)(x+3)(y+4)
(x+4)(y+3)(x+4)(y+3)(x+4)(y+3)
Type a concept, like “slope” or “photosynthesis”.
