Question

pls help me pls pls pls pls pls ​

Answer 1

Answer:

For 1st question

17ab^2. 17x2x1=34

4ab^2. 4x2x1=8

11ab^2. 11×2×1=22

-5ab^2. -5×2×1=-10

-7ab^2. -7×2×1=-14

For 2nd question

-11a+5b. 77+10=87

-3a-4b. 21-8=13

5a+6b. -35+12= -23

4a-3b. -28-6= -34

For 3rd question

a) -3a-b+7c

b) 7a+7b-9c

c) -21a+3b-13c

so it is not same

Mark me as a brainlist plss