Question

2 la puterea 2×n+1> 128

Answer 1

2²ⁿ⁺¹>2⁷
2n+1>7
2n>6
n>3

Answer 2

2² * n + 1 > 128
4*n+1 > 128
4n > 128-1
4n > 127
n > 127 : 4
n > 31,75
n = { 32,33,34.... }