The teacher will be very surprised to see your correct solution 😉
___ ___ ___ \/ x + 5 - \/ 5 - x = \/ x - 1
sum
___ 6 - \/ 5
=
product
6 - sqrt(5)
___ x1 = 6 - \/ 5
x1 = 6 - sqrt(5)
x1 = 3.76393202250021