решите безотлагательно!!! 15 Б

1) x + 2xy + y = (x+y)

2) a + 2a + 1 = a + 2 * a * 1 + 1 = (a+1)

3) b - 6b + 9 = b - 2 * b * 3 + 3 = (b-3)

4) c- 10c + 25 = c - 2 * c * 5 + 5 = (c-5)

5) 4m + 4m + 1 = 2m + 2 * 2m * 1 + 1 = (2m) + 2 * 2m * 1 + 1 = (2m+1)

6) 16 - 8c + c = 4 - 2 * 4 * c + c = (4-c)