3^2 = 4 + 5 Is that it? And no, I didn't use google, and haven't heard this "riddle" before...

Using only the numbers 2,3,4,5 ONCE EACH and the operations + and = ONCE EACH only, form a valid equation. You are not allowed to use the multiply, subtraction or divide sign. (Thus, fractions are NOT allowed.) Hint: Think out of the box.