Problemas
Which equation has two real solutions? A x^2-4=0 B x-4=0 C x^2+4=0 D x+4=0
Roztwór
Guillermina
veterano · Tutor durante 9 años
4.5
(248 Votos)
Respuesta
To determine which equation has two real solutions, we need to analyze each equation individually.A.
This equation can be factored as
. Therefore, the solutions are
and
. These are two real solutions.B.
This equation has only one solution, which is
.C.
This equation can be rewritten as
. Since the square of a real number cannot be negative, this equation has no real solutions.D.
This equation has only one solution, which is
.Therefore, the equation that has two real solutions is option A:
.