4 5x 2 1 10x 7 July 8, 2019 16 32 64 128 2 5x 1 4 74 10x 1 3 4(5x + 2) = 10(2x - 3) + 15 (4x ^ 2 + 5x)/14 + (10 - 2x ^ 2)/7 = 5