7x 2 4 )-( 3x 2 5x 1 July 8, 2019 16 32 64 128 7x 2 5x 3 )- 4 2 3x )= 1 5x 2 15x 4 )-( 3x 2 1 7x 3x 2 7x 11 3x 2 5x 4 5x 2 3x 4 )-( 2x 2 1 )-( 7x 3 3x 2 1 5x )+ 15 7x 4 x 2 A x )= 5x 4 7x 2 3x 6x 2 11x 30 5 x 7 = 35 2x 7
