Question

Alguém sabe 9x² - 6x +1 = 0

Answer 1

9x²-6x+1=0
delta=b²-4.a.c
delta=(-6)²-4.9.1
delta=36-36
delta=0

Answer 2

9x²-6x+1=0
∆=36-36
∆=0

x= 6±6/18

x'=2/3
x"=0

(2/3,0)