Question 445057: Factor completely.
125a^3 – 27b^3
A) (125a - 3b)(a2 + 15ab + 9b2)
B) (5a + 3b2)(25a2 – 15ab + 9b2)
C) (5a - 3b)(25a2 + 9b2)
D) (5a - 3b)(25a2 + 15ab + 9b2)
E) none of the above
I think its C, but I know it can be factored more because 25 can be 5 and 9 can be 3. I just want to make sure its either C or E.
thanks
PAola