2 5x 4 7 July 8, 2019 16 32 64 128 2 5x 4 7x 5 14x 2 5x 4 7 1 2x 5x 2 7x 4 5x 2 7x 4 0 5x 2 7x 4 =- 7x 1 2 5x 3 4 7x 1 3 2 5x )=- 4 7x 3 2 x 4 )= 5x 7 3x 2 5x 7 4 1 2 3x 4 )+ 5x 7 X 2 5x 7 4 0 5x 2 4 x 7 5 5x 4 7x 2 12 0 3 x 2 )+ 4 5x 7 2 5x 1 4 7