4 2x 1 ) 3x 2 4x 1 )-( 2 x July 8, 2019 16 32 64 128 4 2x 1 )+ 3x 2 4x 1 )-( 2 x X 2 4x 2 )( 4 3x 1 8 2x 1 11 )= 0 Factorise 1 2x x 2 1 2x 3x 2 4x 4 2x 4 4x 3 3x 2 4x 1 x 2 1 4 1/2 + 1 1/3