Make the following line a valid equation using only these mathematical operators: addition, subtraction, multiplication, division, parentheses, exponentiation, square root, and factorial.
2 2 2 2 = 50
Solution
2 x (2 + 2)! + 2 = 50
Other solutions (including rearrangements of this solution) are also possible.
(2^2) ! × 2 + 2 = 50