Question

com a formula bhaskara resolva y=x*-2x+1

Answer 1

y = x² - 2x + 1

Δ = b² − 4ac

Δ = (−2)² − 4⋅(1)⋅(1)

Δ = 4 − 4

Δ = 0

$x = \dfrac{-b \pm \sqrt{\Delta}}{2*a}\\ \\ \\ x = \dfrac{-(-2) \pm \sqrt{0}}{2*1}\\ \\ \\ x = \dfrac{2 \pm 0}{2}\\ \\ \\ x' = \dfrac{2 - 0}{2}\\ \\ \\ x' = \dfrac{2}{2}\\ \\ \\ x' = 1\\ \\ \\ x'' = \dfrac{2 + 0}{2}\\ \\ \\ x'' = \dfrac{2}{2}\\ \\ \\ x'' = 1$

S = {1}