Respuesta :

tchrseercalf

Answer:

216 + 9i

Step-by-step explanation:

Given: f(x) = 3x² + 3[tex]x^{1/2}[/tex] + 3x

When x = -9, f(x) equals to;

3(-9)²  + 3(-9[tex])^{1/2}[/tex] + 3(-9)

243 + 3(3i) - 27

243 + 9i - 27

216 + 9i