Equation Questions Practice Question and Answer

Q:

In equation $$ {x^{2}-24x+k=0}$$ the first root is x=2 then find out  the second root of equation.

1159 0

  • 1
    x=-22
    Correct
    Wrong
  • 2
    x=12
    Correct
    Wrong
  • 3
    x=22
    Correct
    Wrong
  • 4
    x=-12
    Correct
    Wrong
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Answer : 3. "x=22"

Q:

$$ ({2+\sqrt{5}})$$ and $$ ({2-\sqrt{5}})$$ is a quadratic equation with roots.

894 0

  • 1
    $$ {x^{2}-3x-4=0}$$
    Correct
    Wrong
  • 2
    $$ {x^{2}+3x-4=0}$$
    Correct
    Wrong
  • 3
    $$ {x^{2}-3x+4=0}$$
    Correct
    Wrong
  • 4
    $$ {x^{2}+3x+4=0}$$
    Correct
    Wrong
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Answer : 1. "$$ {x^{2}-3x-4=0}$$"

Q:

Which of the following is linear equation.

805 0

  • 1
    14 – x =8
    Correct
    Wrong
  • 2
    $$ {14x^{2}+3=8}$$
    Correct
    Wrong
  • 3
    $$ {2^{3}+8=0}$$
    Correct
    Wrong
  • 4
    $$ {x+{1\over x}=3}$$
    Correct
    Wrong
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Answer : 1. "14 – x =8"

Q:

Factor of $$ {12x^{2}+7y^{2}-12}$$ is__

981 0

  • 1
    (4y+3)
    Correct
    Wrong
  • 2
    (3y-4)
    Correct
    Wrong
  • 3
    (4y-3)
    Correct
    Wrong
  • 4
    (3y+2)
    Correct
    Wrong
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Answer : 3. "(4y-3)"

Q:

13x -14= 9x+10 what is the value of x ?

920 0

  • 1
    6
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    3
    Correct
    Wrong
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Answer : 1. "6"

Q:

Factor of $$ {ab-a-b+1}$$ is

818 0

  • 1
    (a-1)(b-1)
    Correct
    Wrong
  • 2
    (a+1)(b-1)
    Correct
    Wrong
  • 3
    (a-1)(b+1)
    Correct
    Wrong
  • 4
    (a+b)(b-1)
    Correct
    Wrong
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Answer : 1. "(a-1)(b-1)"

Q:

If $$ {x^2-12x+33=0}$$, then what is the value of $${(x-4)^2+[{1\over({x-4})^2}}]$$.

843 0

  • 1
    16
    Correct
    Wrong
  • 2
    18
    Correct
    Wrong
  • 3
    20
    Correct
    Wrong
  • 4
    14
    Correct
    Wrong
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Answer : 4. "14"

Q:

If one root of the equation $$ {Ax^2+Bx+C=0}$$ is two and a half times the others, then which of the following is True?

885 0

  • 1
    $$ {7B^2=3CA}$$
    Correct
    Wrong
  • 2
    $$ {7B^2=4CA}$$
    Correct
    Wrong
  • 3
    $$ {7B^2=36CA}$$
    Correct
    Wrong
  • 4
    $$ {10B^2=49CA}$$
    Correct
    Wrong
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Answer : 4. "$$ {10B^2=49CA}$$"

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