Please solve this problem fast and give reason for them

1.	Please solve this problem fast and give reason for them
Answer» Answer: (i), (ii),(iii),(V) are POLYNOMIAL and (iv) is not a polynomial. it is because a polynomial is an expression CONSISTING of VARIABLES and coefficients, that involves only the operations of addition, subtraction, multiplication, and non- negative integer exponents of variables. since, (iv) has negative exponet of variable. y+2/y=(y²+2)/y =(y²+2) $y^{-1}$ =y+2 $y^{-1}$ . so, it is not a polynomial Step-by-step explanation:

Answer»

Answer:

(i), (ii),(iii),(V) are POLYNOMIAL and (iv) is not a polynomial.

it is because a polynomial is an expression CONSISTING of VARIABLES and coefficients, that involves only the operations of addition, subtraction, multiplication, and non- negative integer exponents of variables.

since, (iv) has negative exponet of variable.

y+2/y=(y²+2)/y =(y²+2) $y^{-1}$ =y+2 $y^{-1}$ . so, it is not a polynomial

Step-by-step explanation:

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Please solve this problem fast and give reason for them