Proof Writing & Problem SolvingEasy ShareProof Writing & Problem Solving · Easy problemA direct proof that (x+y)2≥4xy(x + y)^2 \ge 4xy(x+y)2≥4xy for all real x,yx, yx,y rests on the identity (x+y)2−4xy=(x−y)2(x + y)^2 - 4xy = (x - y)^2(x+y)2−4xy=(x−y)2. For x=7x = 7x=7 and y=3y = 3y=3, what is (x+y)2−4xy(x + y)^2 - 4xy(x+y)2−4xy?Check Show answer Walk through it step by step Practice more like this