5x 2 12 4 0 July 8, 2019 16 32 64 128 5x 4 7x 2 12 0 2x 4 5x 2 12 0 5x 4 17x 2 12 0 2x 5 5x ^ 2 - 12x + 4 = 0 5x ^ 2 - 4x - 12 = 0
