The operation is a closed system under subtraction because subtracting one polynomial from another results in a polynomial, maintaining the same type of mathematical object, therefore fulfilling the conditions of closure within the set of polynomials. In this case, both terms are polynomials in \(x\), and their difference will also be a polynomial in \(x\).
in 1-2 sentences,explain why the following operation is a closed system under subtraction
(9x^2+17x13)-(2x^2+12x+11)
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