Respuesta :

Answer:

x = ± 4

Step-by-step explanation:

given 3x² = 48 ( divide both sides by 3 )

x² = 16 ( take the square root of both sides )

x = ± [tex]\sqrt{16}[/tex] = ± 4

x ∈ {- 4, 4 }
3x^2 = 48
3x^2 = 3.16 ==>> (3.16 = 3x16)
3x^2 = 3.4^2
x = 4