0 25 x 1 5 x 4 x 8 July 8, 2019 16 32 64 128 1 25 x 2 5 x 36 x 0 4 x 80 0 25 / x = 0 5 / 8 4 0 25 x 1 5 2) 5 4(0.5x + 4) =8 1(4+x)