Question

quero a conta completa de
c)F(x)=X²-4X+3

Answer 1

Δ = b² - 4ac
Δ = -4² - 4.1.3
Δ = 16-12
Δ = 4

x = 4 +-√4/2
x = 4 +-2/2

x' = 4+2/2
x' = 6/2 = 3

x'' = 4-2/2
x'' = 2/2 = 1                    ok