Which expressions are polynomials?
Select each correct answer.
30y2 + x This is a polynomial.
30y2 + x1/2 If this your expression, it is not a polynomial because the exponent of x is a fraction.
(30y2)/x This is not a polynomial because x is in the denominator.
30y2 This is a polynomial.
Also, this might help you: https://www.mathsisfun.com/definitions/polynomial.html
A polynomial cannot fractional exponents associated with any variable.....so the second one is out
(30y^2 ) / x = 30y^2 x^-1....and a polynomial cannot have negative exponents associated wiith any variable
The first and last answers are correct...[ only non-negative non-fractional exponents are allowed ]