We have the expression

and then we have:

If we want to go from the first expression to the second one we have to add 5 to the expression insde the square and substract 4 to the whole expression, that is:

Since we add 5 units to the variable x, this means that we translate the graph 5 units to the left. Furthermore, since we substract 4 units to the whole expression this means that we translate the graph four units down.
Therefore, the translation moves the graph 5 units to the left and 4 units down the original graph