The statement is true. The Maclaurin series for a function f(x) is given by f(x) = f(0) + f'(0)x + f''(0)x^2/2! + f'''(0)x^3/3! + ..., where f''(0) represents the second derivative of f(x) evaluated at x = 0. In this case, the given Maclaurin series begins as 8 + 6x + 3x^2 + ..., which means that f''(0) = 6. Therefore, the statement is true.