Respuesta :

hunter5408

Answer:

The answer would be r = 2

Step-by-step explanation:

Answer:

r=2

Step-by-step explanation:

r² - 4r + 4 = 0​

r^2-(2+2)r+4=0

r^2-2r-2r+4=0

r(r-2)-2(r-2)=0

(r-2)(r-2)=0

r=2,2