Final answer:
To solve the given equations, we can use the quadratic formula. For f(x) = -3(x - 4)² + 12, the solution is x = 4. For g(x) = (x + 2)² - 13, the solutions are x = -2 and x = -6.
Step-by-step explanation:
To solve the given equations, we can use the quadratic formula. For the first equation, f(x) = -3(x - 4)² + 12, the quadratic formula gives us the solution x = 4. For the second equation, g(x) = (x + 2)² - 13, the quadratic formula gives us x = -2 and x = -6 as the solutions.