Question

2-3y+6y-2y this is a polynomial or not

Answer 1

Yes it is a polynomial. because its degree is a whole number.

Answer 2

2-3y+6y-2y

2+3y-2y

2+y......(1)

Since, in equation ...(1), all of the variables have integer exponents that are positive (i.e : 1) this is a polynomial.