4x 5 2 1 2x 7 July 8, 2019 16 32 64 128 4x 5 2 3 2x 8x 1 7 The solution of 4x 5 2 1 2x 7 4x 2 - 2x 1 )-( 5x 2 - 7x 5 1 4x 2 5 2x 7 x 2 5 2x 1 )+ 7 4x 2 )= 0 1 6 4x 5 )- 2 3 2x 7 )= 3 2