8. The city has extended a square garden with its side measuring x meters by 6 m on one side and 4 m on the other side. a) Write an algebraic expression to represent the new area of the garden. (K/U/1) b) Write a simplified expression to represent the increase in area. (K/U/1) c) Use the above expression in a) and b) to find the new area of the garden for x= 25 m (App/2) 9 a). Factor 18a*c3 -27ac* + 9a c. (K/U /1) b) Factor the expression: 4x3 - 18x2 + 8x (KU /2) 4