1 3 x 7 )= 5x July 8, 2019 16 32 64 128 1 2 3 3x )- 7 1 5x 1 3x 7 5x X 7 5x 3 3x 1 0 3 2 x 1 5x 7 4x 8 6x 12 3 x 7 )- 5x 1 2 5x 8 1 3 x 7 2x 1 3 7 x 6 5x 3 2 5 3 x 7 )= 2 5x 1 1 3x 7 5x 2 11 60 4x 3 x 1 5 5x 7 4x 2 5x 1 3 7 x Factoriser x 3 )( 2x 1 )+( x 3 )( 5x 7 X 5 8x 3 1 7 5x 4 2x 2 1 x )( 5x 3 )=( 3x 7 )( x 1