Q. 1

State, giving the reason, whether the following expressions are polynomials or not.

(1) b2 – 25

(2)

(3)

Answer :

(1) The given algebraic expression is a polynomial in one variable because all the powers of x are whole numbers.


In this given polynomial the power of b is +2 and 0.


Hence these are whole powers of b and hence this expression is a polynomial.


(2) y1/2 -5y + 18 is not a polynomial because in this given equation the first term contains the power of y as 1/2 where 1/2 is not a whole number. So the given algebraic expression is not a polynomial.


(3) 7/m - 2 is not a polynomial because in this given equation the second term becomes 7 × m-1 where -1 is not a whole number. So the given algebraic expression is not a polynomial.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Champ Quiz | Division of PolynomialsChamp Quiz | Division of PolynomialsChamp Quiz | Division of Polynomials33 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses