Question

Exercise 11E
Remove brackets and simplify if possible, by collecting like terms:
1. 8 + (a-2)
4. 7a-8(a + 5)
7. 8a - (b + 7) + 2(a - b)
10. 2x - {7-3(x + 10) + x}
2. 5 + 2a-2)
5. P-3 (p-9)
8. 3m-2(m + 3) + 4(m-1)
11. (b2 + ) - [b2 - b (b + c) + c2]
3. 6a - (8a + 3)
6. -(x - 5)-3(x + 1)
9. a(a - b) - b(b-a)
12. n[15 - n (2n + 5) (n-3) + n{-15 - 7n (n - 4)} +18]​

Answer 1

Answer:

which part please tell hope you understand