Question

f(X) =x²+2x resposta com baskara

Answer 1

a = 1    b = 2  c = 0

Δ = b² - 4.a.c ⇒ achando delta

Δ = 2² - 4. 1. 0

Δ = 4 - 0

Δ = 4

x = ( - b ⁺/₋ √Δ)/2a ⇒ fórmula de Báskara

x = (-2 ⁺/₋√4)/2.1

x = (-2⁺/₋2)/2

x'= (-2 +2)/2 ∴ x' = 0/2∴ x' = 0

x'' = (-2-2)/2 ∴ x'' = -4/2 ∴ x'' = -2

Resposta: {0,-2}