57d25e27f22 is the expression. 57=3×19.
For square root we look at each component. 57 has only prime factors so we cannot further simplify √57.
√d25 can be reduced, because 2 (radical index) is bigger than 25, so 25/2=12 remainder 1, and we get:
d12√d
e27 can be reduced in a similar way: 27/2=13 rem 1, so we get:
e13√e
and f22 becomes f11, because 22/2=11 rem 0.
Combine all these terms: (√57)(d12√d)(e13√e)(f11)=d12e13f11√(57de).