The operation is a closed system under subtraction because the result of subtracting two polynomials, like (9x² + 17x + 13) and (2x² + 12x + 11), results in another polynomial, which is also within the same set of polynomials.
In 1–2 sentences, explain why the following operation is a closed system under subtraction.
(9x2+17x+13)−(2x2+12x+11)
KEEP IT SIMPLE
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