3 x 10 9 2 x 10 7 July 8, 2019 16 32 64 128 3 10 x 2 9 x 7 8 3 x 2 y 10 9 x 7 y 10 * 5 3 x 10 4 4 x 10 3 7 x 10 2 9 3 x 3 = 9 3 x 9/10 10 + (3 - x) ^ 3 = x ^ 2 * (9 - x) - 17