Question

Question 22. 22. Which of the following is equivalent to (n3 + 2n) + (2n3 - n) (Points : 2)
n3 + 4n
4n3
3n3 + n
3n3 - n

Answer 1

What are you doing? Stop that.

Answer 2

stop what?

Answer 3

Some dude keeps spamming the question while I'm trying to answer. Sorry. First he typed 1-7 forward and backwards in separate replies, and then was replying with other things as well.

Answer 4

oh ok

Answer 5

Imagine the equation without the parentheses and simplify the equation.

n^3 and 2n^3 can be added together because they are the same variable and the same exponent

2n and n can also be combined because they are also the same variable and exponent (implied exponent of 1)

So your new equation would be:
(n^3 + 2n^3) + (2n +-n)