Answer:68.5
Step-by-step explanation:
Answer:
16x4 + 16x – 16x – 64
16x4 – 8x – 8x – 64
(4x2 + 8)(4x2 – 8)
16(x2 + 2)(x2 – 2)
C. an= -3+ (n - 115)
hope it help