The distance covered by Steve in his car is given by the expression 9a2−39a - 30. The time taken by him to cover this distance is given by the expression (a−5). Find the speed of the car. (3 Marks) (b) The volume of Sara's storage box is 8x3+12x2−2x−3. She knows that the area of the box is 4x2−1. Evaluate the height of the box? (4 Marks) (c) Perform synthetic division to find the following expression 2x+56x2+7x−20
