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Question

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


  1. x2+4+y3 , 4x1+z3 and 2x22x

  2. x2+4+y3

  3. 2x22x

  4. 4x1+z3 and 2x22x


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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