480^3-480^2-480*479-479^2-479^3

Question

480^3-480^2-480*479-479^2-479^3

Answer 1

480^3-480^2-480*479-479^2-479^3 = 480^2 * (480-1)- 480*479- 479^2 * (479+1)=

= 480^2 * 479 - 480*479 - 479^2 * 480 = 480*479 * (480-1-479)=480*479 *0=0

Answer 2

110592000-230400-229920-229441-109902239=0