How is this a polynomial?

Science & Mathematics by Anonymous 2018-08-02 05:09:03

Social Science

How is this a polynomial?

No response

I'm studying & it says, "a polynomial is a monomial or the sum of 2 or more monomials" example: 2x^2, 2x^2+3, 3x^2-7 How is 3x^2-7 a polynomial, if it says a poloynomial is a monomial or the SUM of 2 or more monomials?