find derivatives

y = (x + 1) (3x2 + x + 1)5 (2x2 + 1 ) 5 @2x 2. (10 points) A 25-foot long ladder is leaning against the wall of a house. The base of the ladder is pulled away from the wall at a rate of 2 feet per second. i) How fast is the top of the ladder moving down the wall when its base is 7 feet from the wall? ii) Find the rate at which the angle between the ladder and the wall of the house is changing when the base of the ladder is 7 feet from the wall