Question

2[a-3{a+5 (a-2)+7}]​

Answer 1

Answer:

2(a-3(a+5a-10+7))

2(a-3(6a-3))

2(6a²-3a-18a+9)

2(6a²-21a+9)

12a²-42a+9. is your answer

Answer 2

Answer:

2[a-3{a+5a-10+7}]

2[a-3{6a-3}]

2[a-18a+9]

2[9-17a]

18-34a