Post a New Question
posted by kim on Thursday, January 7, 2010 at 6:42pm.
how do i factor the perfect square trinomial 9x2-12x+4
(3 2 ) (3 2) have to appear if it is a perfect square to get that 9 and 4 it has to be - 2 times -2 to get +4 and -12 so try (3x-2)(3x-2) sure enough
More Related Questions