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OpenStudy (thatonekidkobe):
Which of the following equations demonstrate that the set of polynomials is not closed under the certain operations? Multiplication: (x^2-5x+3)(x-5)=x^3-10x^2+28x-15 Division: (x^2-5x+3) / (x-5)=x+ 3/x-5 Division: (x^2+x)/(x+1)=x Subtraction: (3x^4 +x^3)-(-2x^4+x^3)=5x^4
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