Respuesta :

jbarclay1
(4K + 7J)^2

4^2 = 16 = 16K

7^2 = 49 = 49J

(16K + 49J)

You would have to use the foil method since it is squared.

The answer would be:

16K^2+28Kj+28Kj+49j^2

--> 16K^2+56Kj+49j^2