Question

x*-4x+4=0 usado baskara? ??

Answer 1

x² - 4x + 4 = 0

Δ = 16 - 16 

Δ = 0 

x = 4 +-√0/2

x = 4 +-0/2

x' = 4+0/2

x' = 4/2 

x' = 2 

x'' = 4-0/2 

x'' = 4/2 

x'' = 2                                               S = { 2 }                     ok