Adding and subtracting polynomials is simply the adding and subtracting of their like terms.
The numbers can have a positive or negative sign.
You keep them the same if they have different bases
The answer is -2m
Addition and subtraction are inverse functions.
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To add polynomials , simply combine similar terms. Combine similar terms get the sum of the numerical coefficients and affix the same literal coefficient .
4x+7y
Other polynomials of the same, or lower, order.
The best way to get help with understanding Algebraic problems on WikiAnswers is to ask a question about a specific type of problem. For example, if you want to know how to multiply polynomials, you could ask "What are the steps needed to multiply polynomials?" There are also some excellent websites that show all the steps to take to solve specific problems. Please see the Related Links below to go to one or more of those websites.
they have variable