Answer:
b horizontal shift left 5
Explanation:
Whenever you have an equation in the form of (x+b)
It shifts b units to the left.
Whenever you have an equation in the form of (x-b)
It shifts b units to the right.
In this case, we have (x+5)^2
We don't have to worry about the squared term as it won't affect b.
So we just move 5 to the left.