Question

PLEASE HELP!?
What is the fourth term in the expansion of (x - 4)6?

Answer 1

answer choices:
-1280x^3
-256x^4
256x^4
1280x^3

Answer 2

it must have x^3
since the exponents for x in the binomial expansion r
x^6 , x^5 , x^4 , x^3
it also must have signus (-)
since the signs goes in this way + , - , +, -

Answer 3

I am beyond lost now.

Answer 4

See how the powers on x decrease as we move to the right, and the powers on our -4 increase?