Posted by ant on Wednesday, June 2, 2010 at 7:10pm.
Factor: 2xy + 6x  4y  12
a)(2x + 4) (y + 3)
b)(2x  4) (y + 3)^2
c)(2x  4) (y  3)
d)(2x  4) (y + 3)

algebra  amy, Wednesday, June 2, 2010 at 7:13pm
2x(y+3)4(y+3)
(2x4)(y+3)
so the answer is d

algebra  MathMate, Wednesday, June 2, 2010 at 7:18pm
(a) and (c) give a constant term of +12, so it cannot be right. (b) gives a constant term of 4*3²=36...not good.
The only candidate (d) can be confirmed by expansion (multiplication).
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