What is the units digit of the expression 14^7−19^4?	Choose the correct answer:
A) 0
B) 3
C) 4
D) 6
E) 8
I think answer on this one should be E too. Since we know that 14^7&gt;19^4, as Will said one should always check if the number is positive.
<result>E</result>
What is the units digit of the expression 14^7−19^4?