Question

y=x²2x+1 ? ? Alguém sabe

Answer 1

y = x² - 2x + 1

a = 1; b = -2; c = 1

x = [- b ± √(b² - 4ac)] / 2a
x = [- (-2) ± √([-2]² - 4 . 1 . 1)] / 2 . 1
x = [2 ± √(4 - 4)] / 2
x = [2 ± √0] / 2
x = [2 ± 0] / 2
x' = [2 - 0] / 2 = 2 / 2 = 1
x'' = [2 + 0] / 2 = 2 / 2 = 1

S = {1}

Espero ter ajudado. Feliz Natal!

Answer 2

A = 1 B = -2 C=1
Δ = b² - 4*a*c
Δ = (-2)² -4*1*1
Δ = 4 - 2
Δ = 2
- b ± √Δ / 2*a
2 ± √2/2*1
2 ± 2/2

x' = 4/2 = 2
x'' = 0/2 = 0

:v