Question

please answer my question​

Answer 1

Answer:

${8}^{n - 1 } = {2}^{n + 1}$

${2}^{3(n - 1)} = {2}^{n + 1}$

as the bases are same

3(n - 1) = n + 1

3n - 3 = n + 1

2n = 4

n = 2

#BAL