ICSE Board Practice

ICSE Grade X - Factor Theorem
Question 1
1.
    • The value of the polynomial
    • (
      w
      3
       
      4
      w
      9
      )
    • at
    •  
    • w
    • =
    • 2
    • is
  • -9
  • -7
  • -8
  • -12
  • -10
Question 2
2.
    • Factorize
    • (
      x
      2
       
      +
      2
      x
      a
      5
      x
      +
      a
      2
       
      5
      a
      36
      )
      • (
        x
        +
        a
        +
        4
        )
      • (
        x
        a
        9
        )
      • (
        x
        a
        +
        4
        )
      • (
        x
        +
        a
        +
        9
        )
      • (
        x
        a
        9
        )
      • (
        x
        +
        a
        4
        )
      • (
        x
        +
        a
        9
        )
      • (
        x
        a
        +
        4
        )
      • (
        x
        +
        a
        +
        4
        )
      • (
        x
        +
        a
        9
        )
Question 3
3.
    • The remainder when
    • (
      5
      q
      2
       
      +
      2
      q
      +
      5
      )
    • is divided by
    • (
      q
      1
      )
    • is
  • 10
  • 15
  • 12
  • 13
  • 11
Question 4
4.
    • The remainder when
    • 9
      g
    • is divided by
    • 6
    • is
  • (
    1
    )
  • 1
  • 3
  • (
    3
    )
  • 0
Question 5
5.
    • The degree of the polynomial
    • (
      4
      v
      2
       
      +
      2
      v
      +
      3
      )
    • is
  • 2
  • 0
  • 1
  • 3
  • 4
Question 6
6.
    • The degree of the polynomial
    • (
      8
      w
      5
      )
    • is
  • 2
  • 1
  • 4
  • (-2)
  • 0
Question 7
7.
    • Find the value of
    • a
    • and
    • b
    • such that
    • a
      x
      4
         
      6
      x
      3
         
      42
      x
      2
        +  
      166
      x
        +  
      b
    •  
    • is exactly divisible by
    • (
      x
      2
       
      +
      x
      20
      )
      • -121
      • ,
      • 1
      • -119
      • ,
      • 3
      • 2
      • ,
      • -119
      • 2
      • ,
      • -120
      • 3
      • ,
      • -120
Question 8
8.
    • If one of the roots of the cubic equation
    • (
      x
      3
       
      +
      9
      x
      2
       
      +
      15
      x
      +
      7
      )
      =
      0
    • is
    • (
      7
      )
    • ,
    • find the remaining real roots
  • (
    (
    8
    )
    ,
    (
    2
    )
    )
  • (
    (
    5
    )
    ,
    1
    )
  • (
    (
    9
    )
    ,
    (
    4
    )
    )
  • (
    (
    1
    )
    ,
    (
    1
    )
    )
  • (
    (
    6
    )
    ,
    0
    )
Question 9
9.
    • The remainder when
    • (
      4
      n
      4
       
      +
      3
      n
      3
       
      8
      n
      2
       
      3
      )
    • is divided by
    • (
      n
      2
       
      +
      3
      n
      40
      )
    • is
  • (
    1238
    n
    8523
    )
  • (
    1239
    n
    8523
    )
  • (
    1237
    n
    8523
    )
  • (
    1242
    n
    8523
    )
  • (
    1240
    n
    8523
    )
Question 10
10.
    • The quotient when
    • (
      3
      q
      3
       
      8
      q
      2
       
      +
      4
      )
    • is divided by
    • (
      q
      2
       
      q
      6
      )
    • is
  • (
    3
    q
    11
    )
  • (
    2
    q
    11
    )
  • (
    4
    q
    11
    )
  • (
    5
    q
    11
    )
  • (
    q
    11
    )