# Case Study Questions for Class 9 Maths Chapter 2 Polynomials

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Case Study Questions

Question 1:

On one day, principal of a particular school visited the classroom. Class teacher was teaching the concept of polynomial to students. He was very much impressed by her way of teaching. To check, whether the students also understand the concept taught by her or not, he asked various
questions to students. Some of them are given below. Answer them.

(i) Which one of the following is not a polynomial?
(a) 4x2 + 2x – 1
(b) y+ (3/y)
(c) x3 – 1
(d) y2 + 5y + 1

(ii) The polynomial of the type ax2 + bx + c, a = 0 is called
(a) Linear polynomial
(c) Cubic polynomial

(iii) The value of k, if (x – 1) is a factor of 4x3 + 3x2 – 4x + k, is
(a) 1
(b) –2
(c) –3
(d) 3

(iv) If x + 2 is the factor of x3 – 2ax2 + 16, then value of a is
(a) –7
(b) 1
(c) –1
(d) 7

(v) The number of zeroes of the polynomial x2 + 4x + 2 is
(a) 1
(b) 2
(c) 3
(d) 4

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