Question

como resolver (x-1)²=-16

Answer 1

(X-1)^2= -16
(X-1).(x-1)=-16
X^2-1x-1x+1=-16
X^2-2x+1=-16
X^2-2x+1+16=0
X^2-2x+17=0

a) 1
B) -2
c) 17

Delta= b^2-4.a.c
Delta= (-2)^2-4.1.17
Delta= 4-68
Delta= -64