Question

Em qual dos conjunto universo a equação x2 -2x-3=0

A)U=1,2,3,4,5

B)U=-5,-4,-3,-2,-1

C)U=-3,-2,0,2,3

D)U=-1,0,1,2,3

Answer 1

Resposta letra D) U=-1,0,1,2,3