3 7 5x 4 July 8, 2019 16 32 64 128 3 5x 7 )= 47 2x 3 5x 7 4x 3 2x 7 )= 5x 4 X 3 5x 7 4y 7 3 2 x 5x 4 3 (- 5x 7 )=- 5 3x 4 4x 3 )-( 5x 7 )= ax b 6 3 5x 7 )= 4x 7 4x 7 3 5x 10 5x 3 x 7 4x 7 6x 5x 3 4x 2x 7 3 5x 4 5 7 3 5x 4 1 10x 8 3 5x 7 4x 43 3 5x 7 (- 4 3x 6