Question

Solve 25^2x−1 =400
for x.
Which answer shows the correct steps?

Answer 1

25^2x−1 = 400
25^2x = 401
(25^2x)/25^2 = 401/25^2
x = 401/625
x = 0.64

Answer 2

Gibberish answer by the bot


25^(2x) − 1 =400
25^2x = 401
2x log 25 = log 401
2x = 1.86212
x = 0.93106

Answer 3

or, assuming the usual carelessness with parentheses,
25^(2x-1) = 400
2x-1 = log400/l0g25
2x = 2.86
x = 1.43