Question : whats the correct answer for the first part : 83686

whats the correct answer for the first part

Consider the equation below. f(x) = 4x^3 + 21 x^2 - 294x + 4 Find the intervals on which f is increasing. (Enter your answer using interval notation.) Find the interval on which f is decreasing. (Enter your answer using interval notation.) Find the local minimum and maximum values of f. local minimum value local maximum value Find the inflection point. (x, y) Find the interval on which f is concave up. (Enter your answer using interval notation.) Find the interval on which f is concave down. (Enter your answer using interval notation.)