Question

x²-2x+1=16 MATEMATICA

Answer 1

Olá!

$\\ x^2 - 2x + 1 = 16 \\ (x - 1)^2 = 16 \\ x - 1 = \sqrt{16} \\ x - 1 = \pm 4$

 Raiz I:

$\\ x - 1 = 4 \\ \boxed{x' = 5}$

Raiz II:

$\\ x - 1 = - 4 \\ \boxed{x'' = - 3}$