5x 2 7x 9 4x 2 x 18 July 8, 2019 16 32 64 128 5 x 7 = 35 5) 7x + 9 2x - 1 4+11x 9x-14 2) 7x ^ 2 + 18x + 5 = 0 4) 9x ^ 2 - 4x - 2 = 0
