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Identifying Like Terms
To identify like terms within an expression, you must look for terms sharing common traits. Specifically, look for terms that are either both constants or possess the same variable raised to the exact same exponent. For example, considering a collection of six terms—, , , , , and —you can pair them by their common traits. The terms and form a pair of like terms, as do and . Finally, the numbers and form a pair of constant like terms.
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