Question

find the sqaure root of x
$(x - y) {}^{2} + 4xy$

Answer 1

(x-y) ^2 + 4xy

=> x^2 +y^2 - 2xy + 4xy

=> x^2 + y^2 + 2xy

=> (x+y)^2

So,

Square root of the given polynomial is (x+y)