2 1 - 0 3x = 0 4x July 8, 2019 16 32 64 128 2 1 0 3x 0 4x 2 3x 0 8 1 0 4x 0 3x 2 1 0 7 0 4x 2 1-0 3x=0 4x 3 x 0
