input: Write a python function to compute the polynomial 2*(x**2) + 5*x + 3 for a given x.
  assert compute_polynomial(3) == 34
  assert compute_polynomial(0) == 3
  assert compute_polynomial(-1) == 0
output: def compute_polynomial(x):
      return 2 * (x ** 2) + 5 * x + 3