Question

please answer this question.The best answer will be marked as brainlist.​

Answer 1

Answer:

Step-by-step explanation:

you are supposed to do it by adding + 1 and subtracting

Answer 2

Answer:

the ans is right

Step-by-step explanation:

its actually cubing the odd place number and adding one

and squaring the even place number and subtracting one

for ex no at one place 1^3+1=2

no at 2nd place 2^2-1=3

so no at 7th place 7^3+1=343+1=344

hence it is the ans