Solve the equation.

25^2x+1 = 36

x = (36 - 1) / 25^2 = 0.0096

Hard to tell what you mean.

I will go with:
25^(2x+1) = 36
(2x+1)log25 = log36
2x+1 = log36/log25 = 1.11328...
x = appr .05664

of course the bot missed another one