Respuesta :

Answer:

[tex]f(2x) = 8x^{2} +3[/tex]

Step-by-step explanation:

f (x) = 2x²+3

f(2x) = [tex]2(2x)^{2}[/tex] + 3

f(2x) = [tex]2(4x^{2} )[/tex] + 3

f(2x) = [tex]8x^{2}[/tex] + 3