Question

If 2n-1 + 2n+1 = 320, then n =?
a) 6
c) 7
b) 8
d) 5​

Answer 1

Step-by-step explanation:

Your Answer Is Here

2n-1+2n+1=320

2n+2n=320

4n=320

n=320/4

n=80

Hope It Helps You

Answer 2

Answer:

n=80

because

{(2×80)-1} + {(2×80)+1} = 320