X 5 11x 3 20x 2 x 9 x 2 2x 8 July 8, 2019 16 32 64 128 (20-11 x)log 5 x-9(x^2-4x+5) 9x - 11 5(2x - 3) 35.11. 1) (x + 8) ^ 2 - x ^ 2 = 11x 3) (12 + x) ^ 2 = x ^ 2 + 21x 8 * (x - 10) ^ 2 - 11 * (x + 5) ^ 2 = - 3x ^ 2 - 170x - 275