In the set with the solution of equation x & # 178; - 4x + 4 = 0 and equation x & # 178; - X-2 = 0 as elements___ There are two elements

In the set with the solution of equation x & # 178; - 4x + 4 = 0 and equation x & # 178; - X-2 = 0 as elements___ There are two elements

x²-4x+4=0
(x-2)²=0
x=2
x²-x-2=0
(x+1)(x-2)=0
X = - 1 or x = 2
The set contains (2) elements