
Kevin S. answered 02/09/13
You can determine this through FOIL. First, determine (-3 + h)2 = (-3)2 + (-3)(h) + (-3)(h) + h2 =
9 - 6h + h2
Now multiply that by (-3 + h):
(9 - 6h + h2) (-3 + h) = (-3)(9) + (-6h)(-3) + (-3)(h2) + (9)(h) + (-6h)(h) + (h2)(h) =
-27 - 3h2 + 9h - 6h2 + h3
Using the commutative property of addition, we can rewrite this as
h3 - 9h2 + 9h - 27