Question

If f(x)= 3x^2 + 3x^1/2 +3x what is the value of f(-9)

Answer 1

Answer:

216 + 9i

Step-by-step explanation:

Given: f(x) = 3x² + 3$x^{1/2}$ + 3x

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

3(-9)²  + 3(-9$)^{1/2}$ + 3(-9)

243 + 3(3i) - 27

243 + 9i - 27

216 + 9i