Question

x2-2x+4=0 equação de segundo grau aajudaaa

Answer 1

x² -2x +4 = 0
a = 1
b = -2
c = 4
Δ = b²-4ac
Δ = (-2)² -4 .1.4
Δ = 4 - 4
Δ = 0

x = -b+-√Δ/2a
x = - (-2) +- √0/2.1
x = 2+-0/2
x1 = 2+0/2 = 2/2 = 1
x2 = 2-0/2 = 2/2 = 1

V= {1,1}