SCHOOL OF SCHOLARS
Session 2023-24
Subject: Mathematics
Term II: Revision WS
Std: IX (10 MCQs + 1 case
Topic- Based Question)
Polynomials
Q.1 Which one is not a polynomial 1
(a) 4x2 + 2x – 1
(b)
(c) x3 – 1
(d) y2 + 5y + 1
Q.2 . The polynomial px 2 + qx + rx 4 + 5 is of type 1
(a) linear (b) quadratic
(c) cubic (d) Biquadratic
Q.3 3. Identify the polynomial 1
(a) x–2 + x –1 + 5 (b)
(c) (d) 3x2 + 7
Q.4 4. The zero of the polynomial p(x) = 2x + 5 is 1
(a) 2 (b) 5 (c) (d)
Q.5 The number of zeros of x 2 + 4x + 2 1
(a) 1 (b) 2 (c) 3 (d) none of these
Q.6 The value of k, if (x – 1) is a factor of 4x 3 + 3x 2 – 4x + k, is 1
(a) 1 (b) 2 (c) –3 (d) 3
Q.7 If 3 + 5 – 8 = 0, then the value of (3) 3 + (5) 3 – (8) 3 is 1
(a) 260 (b) –360 (c) –160 (d) 160
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The value of 5.63 × 5.63 + 11.26 × 2.37 + 2.37 × 2.37 is 1
Q.8
(a) 237 (b) 126 (c) 56 (d) 64
Q.9 If x + y = 3, x 2 + y2 = 5 then xy is 1
(a) 4 (b) 3 (c) 2 (d) 5
Q.10 If x + 2 is a factor of x 3 – 2ax 2 + 16, then value of a is 1
(a) 3 (b) 1 (c) 4 (d) 2
Case Study Based Questions 4
Q.11 Ankur and Rajan Decided to solve few questions of polynomials together. 1
1) Find the product of 98x 97. Both of them were discussing the identity and the
product which of the following is correct according to you?
a) (x+a) (x+b) = x2 +2abx + ab
b)(x-a) (x-b) = x2 - (a+b) x -ab
c) (a-b) (a+b) = a2- b2
d) )(x-a) (x-b) = x2 - (a+b) x +ab
2) Sum of three numbers is zero then what will be ths sum of their cubes ? 1
Ankur and Rajan were confused . Answer for them
a) a3 + b3 +c3= (a+b+c) (a2+b2+c2+ab+bc+ac)
b) a3+b3+c3 = 3abc
c) a3 + b3 +c3 = (a+b+c) 3 - 3a2b -3ab2-3ac2-3b2c
d) None of above
3) Ankur and Rajan wanted to use splitting the middle term for solution following 2
polynomial. Help them to split and solve.
4x2-4x – 15
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