CBSE Board Practice

CBSE Grade VIII - Factorisation
Question 1
1.
    • Which of the following is a factor of
    • 27
      x
      4
       
      y
      5
       
      z
    • ?
  • x
    y
    6
     
    z
  • x
    z
  • x
    5
     
    z
  • x
    4
     
    z
    2
     
  • x
    z
    2
     
Question 2
2.
    • The quotient when
    • 9
      y
    • is divided by
    • (
      2
      )
    • is
  • (
    9

    2
    y
    )
  • (
    7

    2
    y
    )
  • (
    17

    4
    y
    )
  • (
    11

    2
    y
    )
  • (
    5
    y
    )
Question 3
3.
    • The quotient of
    • (
      4
      a
      2
       
      9
      b
      2
       
      )
    • ÷
    • (
      2
      a
      3
      b
      )
    • is
  • (
    2
    a
    +
    5
    b
    )
  • (
    a
    +
    3
    b
    )
  • (
    2
    a
    +
    b
    )
  • (
    3
    a
    +
    3
    b
    )
  • (
    2
    a
    +
    3
    b
    )
Question 4
4.
    • The quotient when
    • (
      6
      e
      3
       
      3
      e
      1
      )
    • is divided by
    • (
      e
      1
      )
    • is
  • (
    6
    e
    2
     
    6
    e
    9
    )
  • (
    7
    e
    2
     
    6
    e
    9
    )
  • (
    8
    e
    2
     
    6
    e
    9
    )
  • (
    5
    e
    2
     
    6
    e
    9
    )
  • (
    4
    e
    2
     
    6
    e
    9
    )
Question 5
5.
    • The quotient of
    • (
      125
      a
      3
       
      75
      a
      2
       
      b
      +
      15
      a
      b
      2
       
      b
      3
       
      )
    • ÷
    • (
      5
      a
      b
      )
    • is
  • (
    25
    a
    2
     
    10
    a
    b
    +
    b
    2
     
    )
  • (
    25
    a
    2
     
    7
    a
    b
    +
    b
    2
     
    )
  • (
    24
    a
    2
     
    10
    a
    b
    +
    b
    2
     
    )
  • (
    25
    a
    2
     
    12
    a
    b
    +
    b
    2
     
    )
  • (
    26
    a
    2
     
    10
    a
    b
    +
    b
    2
     
    )
Question 6
6.
    • The quotient when
    • (
      t
      4
       
      +
      4
      t
      3
       
      +
      7
      t
      2
       
      9
      t
      8
      )
    • is divided by
    • (
      t
      2
       
      +
      3
      t
      +
      2
      )
    • is
  • (
    3
    t
    2
     
    +
    7
    t
    12
    )
  • (
    2
    t
    2
     
    +
    7
    t
    12
    )
  • (
    t
    2
     
    +
    7
    t
    12
    )
  • (
    7
    t
    12
    )
  • (
    2
    t
    2
     
    +
    7
    t
    12
    )
Question 7
7.
    • The quotient of
    • (
      9
      a
      2
       
      30
      a
      b
      +
      25
      b
      2
       
      )
    • ÷
    • (
      3
      a
      +
      5
      b
      )
    • is
  • (
    3
    a
    +
    5
    b
    )
  • (
    3
    a
    +
    7
    b
    )
  • (
    4
    a
    +
    5
    b
    )
  • (
    2
    a
    +
    5
    b
    )
  • (
    3
    a
    +
    3
    b
    )
Question 8
8.
    • The quotient when
    • (
      4
      n
      2
       
      6
      n
      )
    • is divided by
    • (
      n
      6
      )
    • is
  • (
    5
    n
    30
    )
  • (
    7
    n
    30
    )
  • (
    n
    30
    )
  • (
    4
    n
    30
    )
  • (
    3
    n
    30
    )
Question 9
9.
    • The remainder when
    • (
      6
      t
      4
       
      +
      3
      t
      3
       
      t
      2
       
      5
      t
      +
      6
      )
    • is divided by
    • (
      t
      2
       
      6
      t
      27
      )
    • is
  • (
    3063
    t
    9741
    )
  • (
    3062
    t
    9741
    )
  • (
    3061
    t
    9741
    )
  • (
    3060
    t
    9741
    )
  • (
    3064
    t
    9741
    )
Question 10
10.
Which of the following are not polynomials?
a)
    • 144
      x
      2
       
      +
      1

      144
      x
      2
       
b)
    • 144
      x
      2
       
c)
    • (
      11
      x
      +
      9
      y
      )
d)
    • (
      10
      x
      8
      y
      )
e)
    • √x
  • {d,b,a}
  • {c,e,a}
  • {b,a}
  • {c,e}
  • {a,e}