Question

x2-2x+1=0 Quem pode me ajuda ??

Answer 1

x²-2x+1=0

Δ = B² - 4 . (a) . (c)

Δ = -2² - 4 . (1) . (1)

Δ = 4 - 4

Δ = 0

x = -b±√Δ/ 2.(a)

x = -(-2)±√0/2.(1)

x = 2±0/2

x1 e x2 = 2.