College Algebra / Alg 065 · Atom · ~20 seconds
Adding and Subtracting Polynomials
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State
Polynomials add and subtract by combining like terms — terms with the same variable raised to the same power.
Show
(2x² + 3x) + (x² − 5x) collects to 3x² − 2x: the squares combine, the x-terms combine, and the two kinds never mix.
Watch for
Subtraction distributes its minus sign to every term behind it.
Builds on
- Nothing — this is a starting point.
Unlocks
- Nothing yet depends on this.