Question

Equação usando baskara (x-3)²-4=0

Answer 1

(x-3)²-4=0
(x-3).(x-3)-4
x²-3x-3x+9-4=0
x²-6x+5
a= 1, b= -6 e c= 5

Δ= b²-4.a.c
Δ= (-6)²-4.(1).5
Δ= 36-20
Δ= 16

X= -b⊥√Δ/2.a

x'= -6+4/2= -1
x''= -6-4/2= -5