Question

how to find perfect square​

Answer 1

there is so many tricks to find perfect square

for example

23^2

take

a = 2and b = 3

Now

(a+ b)^2 = 2^2 + 2*3*3 + 3^2 =589

the carry generated is added near the left side

or

23^2 = (20 + 3)^2= 400 + 9 +120 = 529

Or

23^2 = 23*23= 529