- 4(y + 5)(12 - y) (1/5 * x - 9/10) + (7/10 * x - 4/5) 19x + (4 + 2b) - 3x 1/9 * (3/4 - x) - (x - 1/15) - 4(3, 3 - 8c) + 4, 8c + 5, 2 15(5, 4 + 3, 5z) - 11z - 6 - 2, 6(5 - c) - c + 8 2(3x - y) - (5x - 2y) - (5/17 + x) - 2/3 * (1/8 + y) 3 1/3 * (2 1/2 * a - 2 1/7 * b - 1 1/2 * c) 12(11/12 * m - 9/10 * n + 3 1/4 * k) 1 1/2 * x(2 2/3 - 1 3/4 * y + 1 1/24 * z) - 5x + 5(- x + 8) - 14 4 5/6 * (2 3/8 * a - 7 5/18 * b) - (7a - 3/8 * b) 3 4/9 * (2 2/7 * x - 5 3/14 * y) - (1 1/21 * x + 2 3/7 * y)

Ответы:

-4(y + 5)(12 - y) = -4y^2 - 8y - 240 (1/5 * x - 9/10) + (7/10 * x - 4/5) = 9/10 * x - 17/10 19x + (4 + 2b) - 3x = 16x + 4 + 2b 1/9 * (3/4 - x) - (x - 1/15) = 1/36 - 10/9 * x -4(3, 3 - 8c) + 4, 8c + 5, 2 = -16c + 14 15(5, 4 + 3, 5z) - 11z - 6 = 81, 5z - 11z - 6 -2, 6(5 - c) - c + 8 = -3,2c + 1,8 2(3x - y) - (5x - 2y) = x - 4y

• (5/17 + x) - 2/3 * (1/8 + y) = -5/17 - 2/3 * (1/8 + y) - x 3 1/3 * (2 1/2 * a - 2 1/7 * b - 1 1/2 * c) = 3 1/3 * (5/2 * a - 15/7 * b - 3/2 * c) 12(11/12 * m - 9/10 * n + 3 1/4 * k) = 11m - 9/5n + 9/2k 1 1/2 * x(2 2/3 - 1 3/4 * y + 1 1/24 * z) = x(8/3 - 7/4 * y + 49/24 * z) -5x + 5(-x + 8) - 14 = -5x + 40 - 14 = -5x + 26 4 5/6 * (2 3/8 * a - 7 5/18 * b) - (7a - 3/8 * b) = 4 5/6 * (19/8 * a - 131/18 * b) - 7a + 3/8 * b 3 4/9 * (2 2/7 * x - 5 3/14 * y) - (1 1/21 * x + 2 3/7 * y) = 3 4/9 * (16/7 * x - 38/14 * y) - 1/21 * x - 16/7 * y