What is polynomial?

Step-by-step explanation:

polynomial is an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable

a polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.

the answer will be b x² +x-1

step-by-step explanation:

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation