keep getting the wrong answer, will give a super good rating if done correctly!

f(x) = - -2 f' (x) = 4x -12(x-+3) x2_0' (x2_9)2) )"(x) (x2-9)3 a. The domain and x and y intercepts b. Asymptotes c. The intervals of increasing/decreasing and concave up/down d. The relative maximum/minimum and the inflection points (both x and y coordinates). e. Sketch the graph