Algebra English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021

9th Standard

    Reg.No. :
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Maths

Time : 00:10:00 Hrs
Total Marks : 10

    Part A

    10 x 1 = 10
  1. Which of the following is trinomial?

    (a)

    -7z

    (b)

    \({ z }^{ 2 }-{ 4y }^{ 2 }\)

    (c)

    \({ x }^{ 2 }y-{ xy }^{ 2 }+y\)

    (d)

    \(12a=9ab+5b-3\)

  2. The area of a rectangle with length \(2l^{ 2 }m\) and breadth \(3l^{ 2 }m\) is_______________________

    (a)

    \(6l^{ 3 }m^{ 3 }\)

    (b)

    \(l^{ 3 }m^{ 3 }\)

    (c)

    \(2l^{ 3 }m\)

    (d)

    \(4l^{ 3 }m^{ 3 }\)

  3. The roots of the polynominal equation \({ x }^{ 2 }+2x=0\)are_______________

    (a)

    x=0, 2

    (b)

    x=1, 2

    (c)

    x=1, -2

    (d)

    x=0, -2

  4. The degree of the polynomial \( \sqrt { 2 } { x }^{ 2 }-\frac { 7 }{ 2 } { x }^{ 4 }+x-5x^{ 3 }\quad is\)_____________________

    (a)

    2

    (b)

    3

    (c)

    4

    (d)

    5

  5. Divide x3-4x2+6x by "x" the result is _____________________

    (a)

    \(x^{ 2 }+4x-6\)

    (b)

    \(x^{ 2 }-4x-6\)

    (c)

    \(x^{ 2 }-4x+6\)

    (d)

    \(x^{ 2 }+4x+6\)

  6. Which of the following has a factor?

    (a)

    x+ 2x

    (b)

    (x - 1)2

    (c)

    (x + 1)2

    (d)

    (x- 22)

  7. (a-b) (a2+ab+b2)=_________

    (a)

    a+ b+ c- 3abc

    (b)

    a- b2

    (c)

    a+ b3

    (d)

    a3 - b3

  8. (a-b-c)2 is equal to________

    (a)

    (a+b+c)2

    (b)

    (a+b+c)2

    (c)

    (-a + b + c)2

    (d)

    (a+b+c)2

  9. Quadratic polynimial may have maximum of______linear factors

    (a)

    1

    (b)

    2

    (c)

    3

    (d)

    4

  10. If one of the factor of x2-9x+18 is (x-3) then the other factor is_________

    (a)

    x-9

    (b)

    x+6

    (c)

    (x-6)

    (d)

    x-18

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