What operations would the set of quadratics be closed under? for each operation, explain why it is closed or provide an example showing that it isn't.

 What operations would the set of quadratics be closed under? For each operation, explainwhy it is closed or provide an example showing that it isn’t.Type your response here:x^2-1+(x^2+2x+1)=2x^2+2x closed under addition.(x^2-1)-(x^2+2x+1)=-2x-2 not a quadratic(x^2-1)(x^2+2x+1)=x^4+2x^3-2x-1 no above degree 2(x^2+2x+1)/(x^2-1)=1+(3x+1)/(x^2+2x+1) not a quadratich. Is there a set of expressions that would be closed under all four operations? Explain.Type your response here: Polynomials with a degree of 0, real numbers, andrational numbers. Info is Not Mine you can find it at this site https://www.coursehero.com/file/p1255io/X1-1-Closed-g-What-operations-would-the-set-of-quadratics-be...