Question

# Which of the following is/are not a Polynomial? (a) x + (b) 2x-318+1 6) r-3.6+1 (1) 2x2 – 5x

Solution (a, b, d)
(a) x2 + 1 = x2 + x- is not a polynomial since the
exponent of variable in 2nd term is negative
(6) 2x2 – 37x +1 = 2x2 – 3x2 +1 is not a polynomial,
since the exponent of variable in 2nd term is a rational
number.
(c) x2 – 3x + 1 is a polynomial.
2x2 - 5x is also not a polynomial, since the exponents
of variable in 1st term is a rational number
Hence, (a), (b) and (d) is not a polynomial.

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