(3n3 + 2n2) + (4n3 - n2)

Question

the numbers after the letters are the exponents

Answer 1

Hi Jaimi,

   This looks like a classic case of "combining like terms."  Since there is no multiplication or division within the parentheses, you can just remove them.  Then, add 3n³ + 4n³ and subtract 2n² - n².  So, what do you get?   7n³ + n².  (The convention is to write the variables with the higher/est exponents first, in an algebraic expression.)