5 * 4 x2 4x 20 * 10 x 2 4x 1 July 8, 2019 16 32 64 128 5 ⋅ 4 x 2 + 4 x + 20 ⋅ 10 x 2 + 4 x − 1 − 7 ⋅ 25 x 2 + 4 x = 0
