Question

1. 1/x^2+1/x-7 is polynomial ?
2. √5x^3+1/3x+4 is polynomial?
3. 3x+√x-5 is polynomial?
4. 3/x^2+6 is polynomial?​

Answer 1

Answer:

" The Fundamental Theorem of Algebra tells you that the polynomial has at least one root. The Factor Theorem tells you that if r is a root then (x−r) is a factor. But if you divide a polynomial of degree n by a factor (x−r), whose degree is 1, you get a polynomial of degree n−1. "