HELP PLEASE WILL MARK RIGHT ANSWER BRAINIEST

Answer:
-2y^-2
Step-by-step explanation:
https://www.symbolab.com/solver/simplify-calculator/simplify%20%5Cleft(8x%5E%7B2%7Dy%5E%7B-1%7D%5Cright)%5Cdiv%5Cleft(-4x%5E%7B2%7Dy%5Cright)?or=input