Respuesta :

Answer:

(5y-6)^2

Step-by-step explanation:

Note that the polynomial 25y^ 2  −60y+36 is a perfect square trinomial, so we will use the following formula.

A ^2 −2AB+B^2 =(A−B) ^2

 

In this example we have A=5y and B=6 so,

25y^2 −60y+36=(5y−6)^2