Simplifying your answer

Answer:
-49
Step-by-step explanation:
In order to fill in the given expression, we need to know ...
Then the expression is ...
√(5 -(-4)) -(-7)² +7÷(-7)·(3) = √9 -49 +7/(-7)(3)
= 3 -49 +(-1)(3) = 3 -49 -3
= -46 -3 = -49