What is the units digit of the expression 14^7−17^4?\nOptions:\n(A)  0\n(B)  3\n(C)  4\n(D)  8\n(E)  6 Think first, then make a decision. Some random thoughts:
User
I think answer on this one should be D too. Since we know that 14^7>17^4, as Will said one should always check if the number is positive. So the answer is (D).
Assistant