jornal Entry2:Unlike terms

x and x^2 are different because they have the same variable but different exponents.We can combine terms because so that we can combine them with each other, and from the different ones will become like terms with the same exponent would be called a like term.You could use a number line to help you remember how to add and subtract integers.8m-2m is the same thing as 8m+2m because they both have the same terms.Positive in the first one and negitive in the second.You could just do KFC (keep flip change).Coefficient is the number in front of the variable to know how many times you need to multiply your exponent.It is important because you could say that for example 6k^2 is a monomial.