This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Maths Chapter 14 Factorisation ā Quiz 5 š Homepage š Download PDF Books š Premium PDF Books Class 8 Maths Chapter 14 Factorisation Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. M$^{2}$+2mx+x$^{2}$ A) (m+x). B) (m+x)$^{2}$. C) All the above. D) None of the above. Show Answer Correct Answer: B) (m+x)$^{2}$. 2. Factorise:4(a + b)-6(a + b)$^{2}$ A) A (a + b) (2-A-Heb). B) A (a + b) (2-A + Heb). C) (A + b) (2-A-Heb). D) (Cha + BB) (Sha-Shb). Show Answer Correct Answer: A) A (a + b) (2-A-Heb). 3. Factor the polynomial:5x$^{2}$-13x + 6 A) (x + 3) (5x-2). B) (x-2) (5x-3). C) (x + 2) (5x + 3). D) (x-3) (5x + 2). Show Answer Correct Answer: B) (x-2) (5x-3). 4. Use your knowledge about algebra and identities to determine whether the following statement is correct.5 x + 4y = 9xy A) CORRECT. B) NOT CORRECT. C) All the above. D) None of the above. Show Answer Correct Answer: B) NOT CORRECT. 5. Expand and simplify $5x-2\left(x+y\right)$ A) $ Reverse $. B) $ Reverse+any $. C) $ Dax $. D) $ Dax+any $. Show Answer Correct Answer: A) $ Reverse $. 6. Simplify the expression:5a + 2b-3a + 4 A) 8a + 2b + 4. B) Any + father + 4. C) 8AB. D) 4Ab + 4. Show Answer Correct Answer: B) Any + father + 4. 7. Factorise $64-9k^2$ A) $\left(8+9k\right)\left(8-9k\right)$. B) $\left(8-9k\right)\left(8-9k\right)$. C) $\left(8+3k\right)\left(8-3k\right)$. D) $\left(8+3k\right)\left(8+3k\right)$. Show Answer Correct Answer: C) $\left(8+3k\right)\left(8-3k\right)$. 8. Factorise:m$^{2}$-3m-40 A) (m-30) ( m-4). B) (m + 6) ( m-8). C) (m + 8) ( m-5). D) (m-8) ( m + 5). Show Answer Correct Answer: D) (m-8) ( m + 5). 9. What are methods for factorisation? A) Common factor. B) Using identities. C) Regrouping. D) All of these. Show Answer Correct Answer: D) All of these. 10. Expand ( x + 2)$^{2}$. A) X$^{2 }$+ 2$^{2}$. B) X$^{2}$ + 2x +2. C) X$^{2}$ + 4x +2. D) X$^{2}$ + 4x +4. Show Answer Correct Answer: D) X$^{2}$ + 4x +4. 11. The common factors of 10a, 20b and 30c are: A) 10abc. B) Ab. C) 10. D) Qc. Show Answer Correct Answer: C) 10. 12. -11xy can be factorised as ..... A) 11(x-xy). B) 2( 11x-11xy). C) 11x ( 2-y). D) None of the above. Show Answer Correct Answer: C) 11x ( 2-y). 13. Kalia buys 5 items that cost d dollars each. She gives the cashier $ 60. Which expression represents the change she should receive? A) 60-5d. B) 60-d. C) 60 + 5d. D) 5d-60. Show Answer Correct Answer: A) 60-5d. 14. Factorise:21w$^{2}$z-77wx A) 3w (7wz + 11x). B) Ho (3WZ-11x). C) 21(w$^{2}$x-77x). D) Xw (21wz-11x). Show Answer Correct Answer: B) Ho (3WZ-11x). 15. How many methods do we have to factorise thr given algebraic expression? A) 3. B) 4. C) 2. D) 1. Show Answer Correct Answer: B) 4. 16. Smallest common factor of any number is A) 0. B) 2. C) 1. D) None of these. Show Answer Correct Answer: C) 1. 17. Factorise:9bx$^{2}$ + 15b$^{2}$x A) Bx(3x + 5b). B) 3bx(3x + 5b). C) 3b(3x-5bx). D) 3b$^{2}$x$^{2}$(3+ 15b). Show Answer Correct Answer: B) 3bx(3x + 5b). 18. The factors of 49p$^{2}$-36 are: A) (Love+i) $^{a} $. B) (Raoa) $^{a} $. C) None of these. D) (Love-i) (Love + i). Show Answer Correct Answer: D) (Love-i) (Love + i). 19. Factorise $x^2-x$ A) $x^2\left(-x\right)$. B) $x\left(x\right)$. C) $x\left(x-1\right)$. D) $x\left(x-x\right)$. Show Answer Correct Answer: C) $x\left(x-1\right)$. 20. Expand (x-8) ( x-8) A) X$^{2}$-64. B) X$^{2}$ + 64. C) X$^{2}$$_{ }$-16x + 64. D) X$^{2}$ + 16x + 64. Show Answer Correct Answer: C) X$^{2}$$_{ }$-16x + 64. 21. FACTORISEx$^{2}$-11x+30 A) (x-6)(x-5). B) (x-6)(x+5). C) (x-6)(x+5). D) IMPOSSIBLE. Show Answer Correct Answer: A) (x-6)(x-5). 22. Factorized form of p$^{2}$-17p-38 is: A) (p + 19) (p-2). B) (p + 19) (p + 2). C) (p-19) (p + 2). D) (p-19) (p-2). Show Answer Correct Answer: C) (p-19) (p + 2). 23. Factorise:-6m$^{2}$ + m-2 A) (M. 1) (Uncle-a). B) (M. 1) (Uncle + a). C) (Umm + 1) (Uncle-a). D) (Mother + 1) (Uncle + A). Show Answer Correct Answer: B) (M. 1) (Uncle + a). 24. Expand (x-4)$^{2}$. A) X $^{2} $-8x+16. B) X $^{2} $-8x-16. C) X $^{2} $ +8x +16. D) X$^{2}$-16. Show Answer Correct Answer: A) X $^{2} $-8x+16. 25. 3x(x-7) + 2(7-x) A) (3x + 2)(x-7). B) (7-x)(3x + 2). C) (3x-2)(x-7). D) (7-x)(3x-2). 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