Respuesta :
Answer:
3 (4x^2 - 9y^2)
Step-by-step explanation:
12x^2 basically means 12xx
27y^2 basically means 27yy
Find the common factor between 12 and 27. The answer is 3
Check to see if the numbers have anything common between such as the letters. They don't.
What do you times by to get from 3 to 12x^2 (4x^2)
What do you times by to get from 3 to - 27y^2
(-9y^2)