please help me

Given
x = 2 + sqrt(3)
x -2 = sqrt(3)
squaring both sides
(x -2)^2 = 3
x ^2 -4x + 4 = 3
x^2 -4x + 1 = 0
this option C

Note if 2 + sqrt(3) is a zero then 2 - sqrt(3) is another zero for a quadratic equation