Question

if x=1/2-root3 find x square -4x+1​

Answer 1

$x = \frac{1}{ 2} - \sqrt{3 } \\ \\ {x}^{2} - 4x +1$

(1/2-root 3)square -4(1/2-root3)+1

1/4+3-2(1/2)(root3)-2+4root3+1

1/4+3-root3-2+1+4root3

1/4+3-1+4root3-root3

2+3root3