0 5x 3 9 July 8, 2019 16 32 64 128 5x 0 9 3 x 1 5 5x 0 9 3 x 1 7 5x 3 9x 4 0 − 0 5x 3 − 5 5x 9 Lim x 0 5x 3 √ 9 x 5 x 0