Question

which one is not polynomial
4x2+2x-1
x3-1
y2+5y+1
y+3/y​

Answer 1

Answer:

y + 3/y

Step-by-step explanation:

y + 3/y is not a polynomial because the variable is in the denominator while it should be in the numerator

Answer 2

Answer:

y+3/y is not a polynomial