Решите уравнение: 9х²-6х+1=0

Question

Решите уравнение:
9х²-6х+1=0

Comments

9х^2-6х+1=0 D=b^2-4ac=6^2-4*9*1=36-36=0

Answer 1

9x^2 - 6x + 1 = 0
(3x - 1)^2 = 0
3x - 1 = 0
3x = 1
x  = 1/3

Answer 2

9х²-6х+1=0
D=b²-4ac=6²-4*9=36-36=0
х1=(-b-√D)/2а=(6-0)/2*9=6/18=1/3
х2=(-b+√D)/2a=(6+0)/2*9=6/18=1/3
Ответ:1/3