the answer should be in the yellow boxes

Given the unity feedback system G(s) = k(s + 2)/s(s + 1) (s + 3) (s + 5) Do the following problem parts by first making a second-order approximation. After you are finished with all of the parts, justify your second-order approximation. Sketch the root locus. Find K for 20% overshoot. For K found in Part (b), what is the settling time, and what is the peak time? Find the locations of higher-order poles for K found in Part (b) Find the range of K for stability