Question

which one is not a polynomial?

A) 4 X² 2X - 1
B) y + 3/y
C) X³ - 1
D) y²+ 5y ± 1​

Answer 1

Answer:

) 4x2+2x-1 b) y+3/y c) x3 - 1 d) y2 +5y + 1. please answer it fast. Dear student, Option b is not a polynomial since the exponent of variable in 2nd term is negative

Answer 2

Answer:

Answer - B) y + 3/y

Step-by-step explanation:

The definition of a polynomial says that the power of a variable should be a whole number but in y+3/y the power of y is -1 because y raised to -1 is equal to 1/y.

So this can be written as y+3*y^-1.

As -1 does not belong to the group of whole number this cannot be polynomial.