This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Maths Chapter 14 Factorisation ā Quiz 4 š Homepage š Download PDF Books š Premium PDF Books Class 8 Maths Chapter 14 Factorisation Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Write the factors of $n^2+16n+63$ A) $\left(n-7\right)\left(n+4\right)$. B) $\left(9n+7\right)\left(n-9\right)$. C) $\left(n-3\right)\left(n-10\right)$. D) $\left(n+7\right)\left(n+9\right)$. Show Answer Correct Answer: D) $\left(n+7\right)\left(n+9\right)$. 2. The factors of m$^{2}$-256 are: A) (m + 4)$^{2}$. B) (m-4) (m+4). C) (m-4)$^{2}$. D) None of these. Show Answer Correct Answer: B) (m-4) (m+4). 3. The common factor of a$^{3}$b$^{3}$ and ab$^{2}$ is: A) Ab$^{2}$. B) A$^{2}$b. C) A$^{2}$b$^{2}$. D) Ab. Show Answer Correct Answer: A) Ab$^{2}$. 4. Factorise 4x + 16. A) 4(x + 4). B) 4(x-4). C) X + 4. D) Hh + h. Show Answer Correct Answer: A) 4(x + 4). 5. Factorise $8b^2+6b$ A) $b\left(8b+6\right)$. B) $2b\left(4b+3\right)$. C) $2b^2\left(4b+3\right)$. D) $14b^3$. Show Answer Correct Answer: B) $2b\left(4b+3\right)$. 6. Factorise:$x^2+3x-130$ A) $\left(x+18\right)\left(x-15\right)$. B) $\left(x-18\right)\left(x+15\right)$. C) $\left(x-13\right)\left(x+10\right)$. D) $\left(x+13\right)\left(x-10\right)$. Show Answer Correct Answer: D) $\left(x+13\right)\left(x-10\right)$. 7. X$^{2 }$-400 A) ( x-200) ( x + 200). B) ( x + 20) ( x + 20). C) Can not be factorized. D) ( x-20) ( x + 20). Show Answer Correct Answer: D) ( x-20) ( x + 20). 8. Identify the common factors of13m$^{2}$y$^{5}$-39my$^{3}$-26y$^{2}$ A) 13my$^{2}$. B) 13y$^{2}$. C) 13m$^{2}$y$^{5}$. D) None of the above. Show Answer Correct Answer: B) 13y$^{2}$. 9. Factorise:-16m$^{4}$-24m$^{2}$n$^{2}$ + 9n$^{4}$ A) (4M-3N) $^{a} $. B) (4M-3N) (4 m +). C) (4 m $^{a} $ on $^{a} $) $^{a} $. D) (Umm-on) (M + on) (4 m +). Show Answer Correct Answer: C) (4 m $^{a} $ on $^{a} $) $^{a} $. 10. Factorise:49a$^{2}$-100b$^{2}$ A) (8a + 10b) ( 8a-10b). B) (7A-10B). C) (H + 10b) (7A-10B). D) (H + 20b) (7A-20B). Show Answer Correct Answer: C) (H + 10b) (7A-10B). 11. The common factor of 10ab, 30bc, 50ca is A) 10. B) 30. C) 50. D) Abc. Show Answer Correct Answer: A) 10. 12. Factorx$^{2 }$+ 9x-36 A) (x + 12)(x-3). B) (x + 9)(x-4). C) (x-12)(x + 3). D) (x-9)(x-4). Show Answer Correct Answer: A) (x + 12)(x-3). 13. Factorise:16y$^{3}$-4y A) 4y(4y + 1)(4y-1). B) (I.e. + 1) (i.e.-1). C) 4y(2y$^{2}$-1). D) 4y(2y + 1)(2y-1). Show Answer Correct Answer: D) 4y(2y + 1)(2y-1). 14. (x + a ) ( x-b) = ..... A) X$^{2}$ + ( a +b ) x + ab. B) X$^{2}$-( a+b )x-ab. C) X$^{2}$ + (a-b) x-ab. D) None of the above. Show Answer Correct Answer: C) X$^{2}$ + (a-b) x-ab. 15. Factorise:$x^2-8x-33$ A) $\left(x-3\right)\left(x+11\right)$. B) $\left(x+33\right)\left(x-1\right)$. C) $\left(x+3\right)\left(x-11\right)$. D) $\left(x-33\right)\left(x+1\right)$. Show Answer Correct Answer: C) $\left(x+3\right)\left(x-11\right)$. 16. The factors of 9x-18x$^{2}$ are ..... A) 9(x-2x). B) Sex (1-X). C) 9. D) 9x(1-3x). Show Answer Correct Answer: B) Sex (1-X). 17. A$^{2}$-1 A) (a + 1)(a-1). B) (a-1)(a-1). C) (a + 1)(a + 1). D) 1. Show Answer Correct Answer: A) (a + 1)(a-1). 18. Factor:x$^{2}$ + 2x-3 A) (x-2)(x + 1). B) (x + 1)(x-3). C) (x + 2)(x-1). D) (x-1)(x + 3). Show Answer Correct Answer: D) (x-1)(x + 3). 19. Factorise:t$^{2}$ + 22t + 85 A) ( t + 11) (t-2). B) ( t-11) (t + 2). C) ( t + 5) (t + 17). D) ( t + 5) (t + 17). Show Answer Correct Answer: C) ( t + 5) (t + 17). 20. 36h$^{2}$-16k$^{2}$ A) (36h + 16k)(36h-16k). B) (6x + Cheka) (6x-Cheka). C) H (yach + hk) (YAH-CC). D) 4 (Uh + Aqa) (Aa-Aqa). Show Answer Correct Answer: D) 4 (Uh + Aqa) (Aa-Aqa). 21. Factorise $14c-21$ A) $7\left(2c-3\right)$. B) $7\left(2c-21\right)$. C) $14\left(c-21\right)$. D) $14\left(c-3\right)$. Show Answer Correct Answer: A) $7\left(2c-3\right)$. 22. Factorise:-m$^{2}$-mn(1-n)-n$^{3}$ A) (m-n)(m + n$^{2}$). B) (m-n)(m-n$^{2}$). C) (m + n)(m-n$^{2}$). D) (m + n)(m + n$^{2}$). Show Answer Correct Answer: A) (m-n)(m + n$^{2}$). 23. Factorise sr + r$^{2}$ A) R (s + 1). B) S (r + 1). C) S (s + r). D) R (s + r). Show Answer Correct Answer: D) R (s + r). 24. Factorise:-3m$^{2}$-21m-234 A) (Uncle-17) (M-4). B) (3(m-6)(m-13). C) 3(m + 6)(m-13). D) (Uncle +17) (M-4). Show Answer Correct Answer: C) 3(m + 6)(m-13). 25. Factorise $5-15a$ A) $5\left(1-3a\right)$. B) $5\left(-3a\right)$. C) $15\left(5-a\right)$. D) $15\left(5-3a\right)$. 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