Question

# Which of the following expressions are polynomials? (i) x2+4+y3 (ii) 4−x−1+z3 (iii) 2x2−2xx2+4+y3 , 4−x−1+z3 and 2x2−2x x2+4+y3 2x2−2x 4−x−1+z3 and 2x2−2x

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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