德望學校 – S2數學 2A Chapter 4 Factorization of Polynomials – CQ (16-21)

Good Hope School – S2 Maths Exam Question (by-topic)
2A Chapter 4 Factorization of Polynomials – CQ (16-21)

德望學校 數學 中二考試 歷屆試題 (by-topic)

Factorization of Polynomials Conventional Questions (16-21)

數學試卷 只供溫習、操卷之用。

試卷答案:

  1. a) (4 – x)2
    b) (4 + x)(4 – x)
    c) (x – 4)(4 + 5x)
  2. a) 2(a + 5b)(a – 5b)
    b) (a + 5b)(2a – 10b – 3)
  3. a) (x – 2)2
    b) (x – 2)(x + 13y – 2)
  4. a) It is an identity
    b) (3x – 11)(x + 1)(x + 2)
  5. a) A = -4, B = 12
    b) 4(x – 4)(x – 1)
  6. (m + 3n)(m – 3n + 2)
  7. a i) (2a + 3b)2
       ii) (2a + 3b)(x – 4y)
    b) 4y
  8. 8(3x2 – 8y2)(x2 + 4y2)
  9. a) 3(7a + 2b – c)
    b) (c + e)(2 – d)
  10. 8x(x2 + 1)
  11. a) (3x – 4y)2
    b) (3x – 4y)(3x – 4y + 2)
  12. a) (a – 3b)2
    b) (a – 3b)(a – 3b – 4c)
  13. a) It is an identity.
    b) (3x – y)(3x – y – 2)
  14. a) (x + 1)(x – 2)
    b) \(\dfrac{x-1}{x+1}\)
    c) \(\dfrac{4x}{(x-1)(x+1)}\)
  15. a) (2a + 1)(a – 3)
    b) (2a + 1 – b2)(a – 3)
  16. a) (2x – 1)(3x + 7)
    b) (2x – 1)(4x2 + 5x + 8)
  17. a) (p – 3)(p + 4)
    b) (p -3)(p – q + 4)
  18. a) (x – 12)(x – 2)
    b) (x – 2)(x – 12 + y)
  19. a) (2x + 1)(7x – 2)
    b) 2(x – 2)(x – 3)
  20. a) (x – 15)(x + 2)
    b) (x – 15)(x – y + 2)
  21. a) 2(9y – 2)(y + 3)
    b) (3x -5)(x + 1)

 

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