5 4 x 7x July 8, 2019 16 32 64 128 5 4 x 7x 9 0 5 4 x )= 7x 2 5 x 4 6 )= 7x 5 x 4 )- 1 =- 7x 3 3x 5 x 4 )=- 7x 5 x 4 )= 20 7x 7x 5 4 x 1 4 x 5 )-( 7x 9 )= 1 4 x 5 )+ 8 7x 18 7x 5 x 4 6x 4 x 5 )+ 3x 7x 12 3x 4 5 x )= 7x 2 5 x 4 )= 7x 26 5 4x )( x 7x 5 7x 4 x 3 )- 7
