Respuesta :

9xy^2 – 11xy^2 
=xy^2 (9-11)
=xy^2 (-2)
= -2xy^2 

Answer:

Simplified result is - 2 xy² .

Step-by-step explanation:

Given expression is 9xy² – 11xy²

now take the common variable out from the above expression,

9xy² – 11xy²

(9 – 11) xy²

since 9 - 11 = - 2

(–2) xy²

- 2 xy²

Hence, Simplified result is - 2 xy² .