Question

x2 + 2 x + 1 = 0 me ajudemm

Answer 1

x² + 2x + 1 = 0

a = 1

b = 2

c = 1  

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

x' = -2 - 0 / 2

x' = -2 / 2

x' = -1  

x'' = -2 + 0 / 2

x'' = -2 / 2

x'' = -1  

S = {-1, -1}