4 1 5 0 8x 0 5 2x 2 2x July 8, 2019 16 32 64 128 0 8x+4 5 5-1 2x 2) 5 4(0 5x+4)=8 1(4+x) 0 5 (0 4x-8)=5 (0 2x-1)
