Question

Resolva as equaçoes do 2°grau sendo u=r
a) 2x^2-3×+1=0

Answer 1

a)

2x² -3x +1=0

a=2
b=-3
c=1

Δ=b²-4ac
Δ=(-3)²-4(2)(1)
Δ=9-8
Δ=1

x=(-b±√Δ0/2a=[-(-3)±√1)/2.2=(3±1)/4

x'=(3+1)/4=4/4=1

x"=(3-1)/4=2/4=1/2

S={1/2 ,1}