25 * x 4 5 3 * 10 * x 8 July 8, 2019 16 32 64 128 Simplify 25 x 4 5 3 10 x 8 (25 ^ x - 4 * 5 ^ x) ^ 2 + 8 * 5 ^ x 2 * 25 ^ x + 15
