hello I need help solving this

(1 point) For the function f(x) = -1x3 + 12x + 10, find all intervals where the function is increasing: f is increasing on (-INF, -2]U(2, INF) (Give your answer as an interval or a list of intervals, e.g., (-infinity,8] or (1,5), (7,10) .) Similarly, find all intervals where the function is decreasing: f is decreasing on (-2, 2) (Give your answer as an interval or a list of intervals, e.g., (-infinity,8] or (1,5),(7, 10) .) Finally, find all critical points in the graph of f (x ) critical points: r = +2, -2 (Enter your x-values as a comma-separated list, or none if there are no critical points.) Note: You his