Factor completely. n4 - 1

(n 2 + 1)(n - 1)
(n 2 + 1)(n - 1)(n + 1)
(n + 1) 2(n - 1)(n + 1)

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?