Answer:

1. 2x + 2y

2. 2a - 4

3. 2m + 10

4. 2b - 14

5. 10n

Step-by-step explanation:

1. (x + y)2

(x + y) × 2

2x + 2y

2. (a - 2)2

(a - 2) × 2

2a - 2 × 2

2a - 4

3. (m + 5)2

(m + 5) × 2

2m + 5 × 2

2m + 10

4. (b - 7)2

(b - 7) × 2

2b - 7 × 2

2b - 14

5. ( n + 10)

10n