Respuesta :

wegnerkolmp2741o

Answer:

3(3x-5y) (3x+5y)

Step-by-step explanation:

27x^2−75y^2

Factor out a 3

3(9x^2 -25y^2)

This is the difference of squares

a^2 -b^2 = (a-b) (a+b)

a^2 = 9x^2  so a =3x

b^2 = 25y^2 =5y

3(9x^2 -25y^2) = 3(3x-5y) (3x+5y)