Question

equaçao quadrática 2x²–4x+2=0

Answer 1

2x²-4x+2=0
a=2, b=-4, c=2
∆=b²-4ac
∆=(-4)²-4•2•2
∆=16-16
∆=0=>x1=x2

x1=x2=[b²±√∆]/2a=(16±0)/2=8