Answer:
The vertex (-2,3) is the answer.
Explanation:
* For y= ax^2 + bx+ c, we have the vertex (-b/2a, -delta/4a)
* For y = a(x+m)^2 +n, the vertex is (-m, n)
* For: y = -2(x+2)^2 + 3, we have the vertex (-2, 3).
The vertex (-2,3) is the answer.
Hope you understand.