Respuesta :

Answer:

[tex]25x^2+3[/tex]

Step-by-step explanation:

[tex]h(5x)= \\\\(5x)^2+3= \\\\(5x)(5x)+3= \\\\25x^2+3[/tex]

Hope this helps!

Answer:

25x^2+3

Step-by-step explanation:

h (x)=x² + 3

Replace x with 5x

h(5x) = (5x)^2 +3

       = 25x^2+3