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Question

Which of the following expressions are polynomials?
(i) x2+4+y3
(ii) 4x1+z3
(iii) 2x22x


A

x2+4+y3 , 4x1+z3 and 2x22x

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B

x2+4+y3

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C

4x1+z3 and 2x22x

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D

2x22x

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Solution

The correct option is B

x2+4+y3


Polynomials cannot have variables with exponents as negative integers. So, (ii) and (iii) are not polynomials as the variable 'x' has negative exponents.


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