Question

what must be added to x^2+8xy+4y^2 to make it perfect square​

Answer 1

Answer:

Nothing to add itself is a perfect square

Answer 2

Answer:

(x+2y)^2

Step-by-step explanation:

x^2+8xy+4y^2

[(x+y)^2 = x^2+ 2xy +y^2]

(here, x = x , y = 2y)

so, (x+2y)^2 Ans.

So, nothing should be added as it is itself a perfect square.