1 2x 2 2x 4 0 July 8, 2019 16 32 64 128 1 2 2x 4 )+ 0 6 3x 3 6 2x 2 12x 4 0 1 2x 2 3x 4 0 1 2x x 2 3 )( 2x 2 4 )= 0 1 4x 2 2x 4 0 2x 1 4 2x 1 2 12 0 1 2x 2 x 4 0 5x 3 )( 2x 1 )-( 2x 1 2 4 0 2x 2 12x 4 0 completing the square 2x 1 2 5 2x 1 )+ 4 0
