1. Question: a + b = 6 এবং a - b = 4 হলে ab এর মান কত?

    A
    4

    B
    5

    C
    6

    D
    7

    Note: `ab = ((a + b)/2)^2 - ((a - b)/2)^2` `= (6/2)^ - (4/2)^2` `= 3^2 - 2^2 ` `= 9 - 4 = 5`
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  2. Question: x + 2y এর বর্গ কোনটি?

    A
    ` x^2 + 2xy + y^2`

    B
    `x^2 + 4xy + 4y^2`

    C
    `x^2 + 2xy + 4t^2`

    D
    `x^2 + xy + y^2`

    Note: Not available
    1. Report
  3. Question: যদি a + b = 5, a - b = 4 হয় তাহলে, `a^2 - b^2 = ` কত?

    A
    9

    B
    10

    C
    15

    D
    20

    Note: Not available
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  4. Question: `a + 1/a = 3` হলে `a^2 + 1/a^2` এর মান কত?

    A
    5

    B
    7

    C
    11

    D
    13

    Note: Not available
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  5. Question: a - b = 5 এবং ab = 3 হলে `a^2 + b^2` এর মান কত?

    A
    13

    B
    19

    C
    31

    D
    37

    Note: Not available
    1. Report
  6. Question: (x - 3y) এর বর্গ নিচের কোনটি?

    A
    `x^2 + 6xy + 9y^2`

    B
    `x^2 - 6xy + 9y^2`

    C
    `x^2 + 6xy - 9y^2`

    D
    `x^2 - 6xy - 9y^2`

    Note: Not available
    1. Report
  7. Question: (x + 6) (x + 4)

    A
    `x^2 - 6^2`

    B
    `x^2 - 4^2`

    C
    `(x)^2 - (10)^2`

    D
    `(x + 5)^2 - (1)^2`

    Note: Not available
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  8. Question: `2x + 2/x = 4` হলে `x^2 + 1/x^2` = কত?

    A
    0

    B
    2

    C
    6

    D
    8

    Note: Not available
    1. Report
  9. Question: x - y = 6 এবং xy = 5 হলে `(x + y)^2 =`কত?

    A
    16

    B
    26

    C
    46

    D
    56

    Note: Not available
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  10. Question: (x + 11) (x - 8)

    A
    `x^2 - 19x + 88`

    B
    `x^2 - 3x + 88`

    C
    `x^2 + 3x - 88`

    D
    `x^2 + 19x - 88`

    Note: Not available
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