Let us simplify
2-5(9-4*sqrt25)^2" "the given expression
2-5(9-4(5))^2" "we begin inside the grouping symbol exponentiation first
2-5(9-20)^2" "we take the product of 4 and 5
2-5(-11)^2" "we now have the difference between 9 and 20
2-5(121)" "the square of -11 is 121
2-605" "the product of 121 and 5 is 605
-603" "final answer is the difference between 2 and 605 where 2 is the minuend and 605 the subtrahend.