Four Fours/22/Solutions

Puzzle: Four Fours: $22$

Using exactly $4$ instances of the number $4$, the task is to write an expression for $22$, using whatever arithmetical operations you consider necessary.

Solutions

Solution $1$

$22 = 4! - \dfrac {4 + 4} 4$

Solution $2$

$22 = 4 \times 4 + 4 + \sqrt 4$

Solution $3$

$22 = 4! + 4 - 4 - \sqrt 4$