Is this meant to be

2^(x+1) + 5x^(x-2) = 104 or

2^(x+1) + 5(x^x) -2 = 104 or

(2^x) + 1 + 5(x^x) - 2 = 104 or what?

.

By graphing, I get an answer that is approximately 2.8.

I don't have an algebraic way of solving this problem.