Разложить на множители 1)m^3-m-am^2+a 2)ay-2ab+2by-y^2 3) x^2+4yz-xy-4xz 4)ay^2+2a^2-a^3-2y^2 5)a^2+ab+az+bx 6)6m-12-2n+mn 7)x+y-x^2-xy

1) m - m am + a = m * (m - 1) a * (m - 1) = (m - 1) * (m - a).

2) ay - 2ab + 2by y = a * (у 2b) y * (y 2b) = (y 2b) * (a - y).

3) x + 4yz xy - 4xz = x * (x - y) - 4z * (x y) = (x y) * (x 4z).

4) ay + 2a - a - 2y = y * (a - 2) a * (a - 2) = (a 2) * (y - a).

5) a + ab + az + bz = a * (a + z) + b * (a + z) = (a + z) * (a + b).  

6) 6m 12 - 2n + mn = n * (m - 2) + 6 * (m 2) = (m 2) * (n + 6).

7) x + y x - xy = x * (1 x) + y * (1 x) = (1 x) * (x + y).

8) 4ab + 4ab + a + ab = a * (4b + 1) + ab * (4b + 1) = (4b + 1) * (a + ab).

9) 5mn - 6an + 10m - 3an = 5m * (n + 2) 3n * (n + 2) = (n + 2) * (5m - 3n).

10) 8mn - 24n - 7mn + 21 = 8n * (mn - 3) 7 * (mn - 3) = (mn - 3) * (8n - 7).

11) ax + yx + ax + cx + yx + cx = ax * (x + 1) + yx * (x + 1) + cx * (x + 1) = (x + 1) * (ax + yx + cx).

12) 12ay - 6ayc + 3ac - 6ayc c + 2ay = 6ay * (2ay c) 2ac * (2ay c) + 1 * (2ay c) = (2ay c) * (6ay 2ac + 1).