Question

x²-3x +1=0 alguem pode resolver? equacão do 2 grau
2 2

Answer 1

Δ=3²-4.1.1

Δ=9-4

Δ=5

x=-(-3)+-√5

x=3+-√5

x'=3+√5

x''=3-√5

Answer 2

∆ = -3² - 4 . 1 . 1
∆ = 9 - 4
∆ = 5

x = - (-3) +- √5 / 2 . 1
x1= 3 + √5 / 2
x2= 3 - √5 / 2