MATCH DOWN! Match the boxed of rational algebraic expression to its equivalent simplified expression. Write the given rational expression on the appropriate column. If the equivalent is not among the choices given write in column E. A. 2 B. 1 C. 4 D. 2 E. x²-9 (x+3)(x-3) x +4 2x+8 A 4x² + 6x 6x² + 9x B 2x² +6 6x² +9 6c 8c C 2y + 14 y² + 4y-21 3x - 12 6x - 24 6m 8m 8a²c 4a² c 4x - 6 6x - 18 E​