1) m – n + 2р(m – n) 2) х- хy – 7х + 7y
3) ах + bх + ас + bс
4) m- mn – 9m + 9n
5) ах – аy + bх – by
6) рх + рy – 5х – 5y
7)3а – 3с + ха – хс
8)4а + by + аy + 4b
9) аb – ас – 4b + 4с
10)5а - 5y + ра – р

1) m - n + 2p × (m - n)

(m - n) × (1 + 2p)

2) x - xy - 7x + 7y

- 6x - xy + 7y

3) ax + bx + ac + bc

x × (a + b) + c × (a + b)

(a + b) × (x + c)

4) m - mn - 9m + 9n

- 8m - mn + 9n

5) ax - ay + bx - by

a × (x - y) + b × (x - y)

(x + y) × (a + b)

6) px + py - 5x - 5y

p × (x + y) - 5 × (x + y)

(x + y) × (p - 5)

7) 3a - 3c + xa - xc

3 × (a - c) + x × (a - c)

(a - c) × (3 + x)

8) 4a + by + ay + 4b

a × (4 + y) + b × (y + 4)

(4 + y) × (a + b)

9) ab - ac - 4b + 4c

a × (b - c) - 4 × (b - c)

(b - c) × (a - 4)

10) 5a - 5y + pa - py

5 × (a - y) + p × (a - y)

(a - y) × (5 + p)