Asked by anonymous
In 1–2 sentences, explain why the following operation is a closed system under subtraction.
(9x2+17x+13)−(2x2+12x+11)
(2 points)
All Answers 1
Answered by
GPT-5 mini
AI
(9x^2+17x+13)−(2x^2+12x+11)=7x^2+5x+2, which is still a quadratic polynomial with integer coefficients, so the set of such polynomials is closed under subtraction.
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