A polynomial is a sum of monomials. The monomials in a polynomial are called its terms.
When adding or subtracting polynomials, combine like terms: the same variable part; add or subtract the coefficients.
Expand parentheses first if needed
Combine like terms
Write the answer in standard form
Addition and subtraction: combine like terms.
(2x+3)+(x−5)
Combine like terms.
=3x−2
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