X 2 4 9x July 8, 2019 16 32 64 128 X 2 9x 4 0 X 4 2 9x 22 X 2 9x 4 =- 10 (x-4)2 - 9 x 2 X 2 (- x 4 9x 3 1 Y x 2 9x 4 5x 2 x 4 9x 23 2x 2 x 4 9x 3 X 2 9x 4 x 8 7 x 2 ) 9x 4 X 3 4 2 9x 36 X 3 6x 2 9x 4 0 X 4 9x 2 20 X 4 9x 2 20 0