Expanding the expressions:

(1-√5)^2 = (1-√5)(1-√5)
= 1 - √5 - √5 + 5
= 6 - 2√5

(3-2√5)^2 = (3-2√5)(3-2√5)
= 9 - 6√5 - 6√5 + 20
= 29 - 12√5

So, the given expression becomes:

(6 - 2√5) + √(29 - 12√5)
= 6 - 2√5 + √(29 - 12√5)

Since the square root of (29 - 12√5) does not simplify to a simple radical, this expression is the most simplified form.