~ Unlike Terms ~

~ " Yes " x is different from x^2, because the first x don't have an exponent .We can combine the terms that have the same exponent, because they are the same and they are in the same group.They would be called "like Terms.One thing that you can do to remember how to add and subtract integers. Is to remember subtraction and addition is using the number line. Yes 8n-2 is the same as 8n+-2. A coefficient is the first number in front of each variable. They are important because they let us know how many times they repeat.~