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Let R(x) = x3 - 7x2 - 5x + 2. (a) Find all partition numbers of F'(x). (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) (b) Find all critical values of A(x). (Enter your answers as a comma separated list. If an answer does not exist, enter DNE.) x = (c) Find the interval(s) where A(x) is increasing. (Enter your answer using interval notation.) (d) Find the interval(s) where R(x) is decreasing. (Enter your answer using interval notation.) Submit Answer 2. [-/0.71 Points] DETAILS 0/6 Submissions Used Let A(x) = - 8x + 8 *+ x + 1 (a) Find all partition numbers of F'(x). (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) (b) Find all critical values of A(x). (Enter your answers as a comma separated list. If an answer does not exist, enter DNE.) (