In this question, we have four options, and we have to find, which expression is not a polynomial .
A polynomial should not have negative exponents or fractional exponents .
And out of the given four options , the third option have negative exponents. So it is not a polynomial .
Hence the correct option is the third option .
Answer: Option 'c' is correct.
Step-by-step explanation:
Since we know that "Polynomials contains one or terms but powers of term must not be in rational numbers or in negative forms".
So, According to options,
A. 5x⁵ is a polynomial.
B. 8x¹⁰+2x⁵ is a polynomial.
C. 5x⁻¹+4x⁻² is not a polynomial because it contains negative powers.
D. x⁵+2 is a polynomial.
Hence, option 'c' is correct.
