Question

(5/7) ^ 2 + (5/7) ^ (3n + 1) = (5/7) ^ 4​

Answer 1

Answer:

n = 1/3

Step-by-step explanation:

(5/7)² + (5/7)³ⁿ⁺¹ = (5/7)⁴

Bases are same, equate the powers.

2 + 3n + 1 = 4

3 + 3n = 4

3n = 4 - 3

3n = 1

n = 1/3

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