6. The figure shown has an area A(x) = 2x2 + 8x - 3 cm2. a) Write an expression for the area, B(x), of the bottom rectangular part of the figure. B - ( 2 x 2- 2X ) - 2x b ) Find an expression in simplest form for the area, T(x), of the top part of the figure. c) If the area of the top is 9 cm2, determine the value of x. red by the Cancopy agreement