Question

Class 7
Expand each if the following expressions:
1. (a+1)(a-9)
Ans: a²-8a-9

2. (b-2)(b+7)
Ans: b²+5b-14

3. (c-5)(c-6)
Ans: c²-11c+30

4. (3d+1)(5-2d)
Ans: -6d²+13d+5

5. (1-f)(7f+6)
Ans: -7f²+f+6

6. (4-3h)(10-9h)
Ans: 40-66h+27h²

I just need the Solutions of each of them and the solutions should give the answer given below each question.​

Answer 1

Answer:

"Ans" (and any subsequent words) was ignored because we limit queries to 32 words.