Question

y=x2-2X função quadratica ​

Answer 1

Bom Dia

x^2+2x=0

delta=b^2-4ac

delta=2^2-4.1.0

delta=4-0

delta=4

x=-b-/+ raiz de delta/2a

x=-2-2/2.1

x=-4/2

x=-2

x=-2+2/2.1

x=0/2

x=0

S={-2, 0}