Respuesta :

Answer:

(4/9)x^2 - (9/25)y^2

Step-by-step explanation:

((2/3)x-(3/5)y)*((2/3)x+(3/5)y)

(4/9)x^2 + (6/15)xy - (6/15)xy - (9/25)y^2

(4/9)x^2 - (9/25)y^2