Respuesta :

Answer:

9

Step-by-step explanation:

Plug the numbers in

The result for each number when plugged in order is:

121

81

0

9

49

So 9 would be the answer

Answer:

9

Step-by-step explanation:

If (x-2)^2=49 then x could be 9.

(x-2)^2 = 49

x or 9 - 2 = 7

7^2 = 49