X 5 7x 9 July 8, 2019 16 32 64 128 X 5 7x 9 1 15 4 x 5 )-( 7x 9 )= 1 X 5 7x 2 9 3 x 5 )= 9 7x 7x 19 x 5 90 5 4 x 7x 9 0 5 x 2 )+ 3 7x 9 9x 5 x =- 9 7x 8 9x 1 )( x 5 )( 7x 2 5 90 7x )= x 126 7x 2 x 5 )= 9x 10 9 1 x ) - 7x 5 7x 5 x 3 90 5 7x 3 x 4x 9 2x