# Class 8 Maths Chapter 9 Test Paper Set 4 Pdf Download CBSE

Test Paper Of Class 8 Maths Chapter 9 Algebraic Expressions and Identities set 4 pdf download

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**Chapter 9 Test Paper (04)**

**Class 8 Maths Chapter 9 Algebraic Expressions and Identities Test Paper Set-4 Text Form:-**

**PGRMS Education**

**SAMPLE PAPER (4)CLASS: 8 MAX. MARKS :30SUBJECT: MATHEMATICS TIME: 1:30 HOURCH: 9 (Algebraic Expressions and Identities)**

**Section β A**

**In Questions 1 to 10, there are four options, out of which one is correct. Write the correct answer.**

1. The product of a monomial and a binomial is a

(a) monomial (b) binomial

(c) trinomial (d) none of these

2. If we subtract β3x^{2}y^{2} from x^{2}y^{2}, then we get

(a) β 4x^{2}y^{2} (b) β 2x^{2}y^{2}

(c) 2x^{2}y^{2} (d) 4x^{2}y^{2}

3. Product of the following monomials 4p, β 7q3, β7pq is

(a) 196 p^{2}q^{4} (b) 196 pq^{4}

(c) β 196 p^{2}q^{4} (d) 196 p^{2}q^{3}

4. Square of 3x β 4y is

(a) 9x^{2} β 16y^{2} (b) 6x^{2} β 8y^{2}

(c) 9x^{2} + 16y^{2} + 24xy (d) 9x^{2} + 16y^{2} β 24xy

5. Coefficient of y in the term 3/βy is

(a) β 1 (b) β 3

(c) -1/3 (d)1/3

**Section β B**

6. Classify the following polynomials as monomials, binomials, trinomials. Which polynomials do not fit in any of these three categories?

x + y, 1000, x + x^{2} + x^{3}+ x^{4}, 7 + y + 5x, 2y β 3y^{2}, 2y β 3y^{2} + 4y^{3}, 5x β 4y + 3xy, 4z β 15z^{2},

7. Add (a) l^{2}+ m^{2}, m^{2} + n^{2}, n^{2} + l^{2}, 2lm + 2mn + 2nl

(b) Subtract 5x^{2}β 4y^{2}+ 6y β 3 from 7x^{2}β 4xy + 8y^{2}+ 5x 3y.

8. Obtain the product of

(a) 2, 4y, 8y^{2}, 16y^{3}

(b) pq + qr + rp, 0

9. Simplify a (a^{2 }+ a + 1) + 5 and find its value for

(i) a = 0,

(ii) a = 5

**Section β C**

10. Find the product.

(a) (2pq + 3q^{2}) and (3pq β 2q^{2})

(b) (a + 7) and (b β 5)

(c) (a^{2}+ 2b^{2}) and (5a β 3b)

11. Simplify

(a) (2.5m + 1.5q)^{2} + (2.5m β 1.5q)

(b) (x^{2} β 4) (x^{2} + 4) + 16

12. Use a suitable identity to get each of the following products.

(a) (7a β 9b) (7a β 9b)

(b) (4x + 5) (4x + 1)

(c) (β a + c) (β a + c)

**Section β D**

13. Simplify.

(a) (a β b) (a + b) + (b β c) (b + c) + (c β a) (c + a) = 0

(b) (4m + 5n)^{2}+ (5m + 4n)^{2}

(c) 5.1 Γ 5.2

(d) 71^{2}

14. (a) The cost of a chocolate is Rs (x + y) and Rohit bought (x + y) chocolates. Find the total amount paid by him in terms of x. If x = 10, find the amount paid by him.

(b) Subtract b (b^{2} + b β 7) + 5 from 3b^{2} β 8 and find the value of expression obtained for b = β 3.