CBSE  /  Class 8  /  Maths  /  Factorisation

  • 1. 
    The factorisation of 12a²b +15ab² gives:

  • 3ab(4ab + 5)
  • 3ab(4a + 5(b)
  • 3a(4a + 5(b)
  • 3b(4a + 5(b)

  • 2. 
    The factorisation of 12x + 36 is

  • 12(x + 3)
  • 12(3x)
  • 12(3x + 1)
  • x(12 + 36x)

  • 3. 
    On factorising 14pq + 35pqr, we get:

  • pq(14 + 35r)
  • p(14q + 35qr)
  • q(14p + 35pr)
  • 7pq(2 + 5r)

  • 4. 
    The factors of 6xy – 4y + 6 – 9x are:

  • (3x + 2) (2y + 3)
  • (3x – 2) (2y – 3)
  • (3x – 2) (2y + 3)
  • (3x + 2) (2y – 3)

  • 5. 
    The factors of x² + xy + 8x + 8y are:

  • (x +y) (x + 8)
  • (2x + y) (x + 8)
  • (x + 2y) (x + 8)
  • (x + y) (2x + 8)

  • 6. 
    The factors of 4y2  - 12y + 9 is:

  • (2y + 3)²
  • (2y - 3)²
  • (2y - 3)(2y + 3)
  • None of the above

  • 7. 
    The factors of 49p² - 36 are:

  • (7p + 6)²
  • (7p - 6)²
  • (7p - 6 ) ( 7p + 6)
  • None of the above

  • 8. 
    The factors of m² - 256 are:

  • (m + 4)²
  • (m - 4)²
  • (m - 4) (m+4)
  • None of the above

  • 9. 
    When we factorise x² + 5x + 6, then we get:

  • (x + 2) (x + 3)
  • (x - 2) (x - 3)
  • (x × 2) + (x × 3)
  • (x × 2) - (x × 3)

  • 10. 
    The factors of 3m² + 9m + 6 are:

  • (m + 1) (m + 2)
  • 3(m + 1) (m + 2)
  • 6(m + 1) (m + 2)
  • 9(m + 1) (m + 2)
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