Question

(X-2)elevado a 2 -x=1

Answer 1

$( x - 2) {}^{2} - x = 1$
${x }^{2} - 2x - 2x + 4$
${x}^{2} - 4x + 4 = 1 \\ {x}^{2} - 4x + 3$
Fazendo Baskhara

Delta
A=1
B=-4
C=3

16-4(1)(3)
16-12
4

Sendo então 2 raizes

(-(-4)+-V4) /2

X1
$\frac{4 + 2}{2} = \frac{6}{2} = 3$

X2
$\frac{4 - 2}{2} = \frac{2}{2} = 1$