Algebra Question with answer Practice Question and Answer

Q:

If a = 2.234, b = 3.121 and c = –5.355, then the value of $$ a^3 + b^3 + c^3 – 3abc$$ is

1928 0

  • 1
    -1
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "0"

Q:

If a-6b = 3 then the value of a3-216b3-54ab is : 

1920 0

  • 1
    27
    Correct
    Wrong
  • 2
    64
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "27"

Q:

If $$ {(x+{1 \over{x}})^{2}}=3$$, the value of of $$  {x^{206}+x^{200}+x^{90}+x^{84}+x^{18}+x^{12}+x^{6}+1}$$

1895 0

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    84
    Correct
    Wrong
  • 4
    206
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "0"

Q:

If x4+2x3+ax2+bx+9 is a perfect square where a and b are positive real numbers, then the value of a and b 

1893 0

  • 1
    a = 5, b = 6
    Correct
    Wrong
  • 2
    a = 6, b = 7
    Correct
    Wrong
  • 3
    a = 7, b = 7
    Correct
    Wrong
  • 4
    a = 7, b = 8
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "a = 6, b = 7"

Q:

If $${x}^2+{y}^2x+1=0$$ then the value of $$x^{31}+y{35}$$ is

1887 0

  • 1
    – 1
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "– 1 "

Q:

$$ {x+{1\over{x}}}$$, then the value of $$ {x^2}+{1\over{x^2}}$$ is

1883 0

  • 1
    9
    Correct
    Wrong
  • 2
    7
    Correct
    Wrong
  • 3
    11
    Correct
    Wrong
  • 4
    14
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "7"

Q:

x = y = 333 and z = 334, then value of x3 + y3 + z3 – 3xyz is 

1866 0

  • 1
    0
    Correct
    Wrong
  • 2
    667
    Correct
    Wrong
  • 3
    1000
    Correct
    Wrong
  • 4
    2334
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "1000"

Q:

If $$ {3x+}{2\over {\sqrt{x}}}=1$$ then $$ {x-{\sqrt{x}}}=?$$

1854 0

  • 1
    $$ {-2\over {\sqrt{3}}}$$
    Correct
    Wrong
  • 2
    $$ {-3\over {\sqrt{3}}}$$
    Correct
    Wrong
  • 3
    $$ {2\over {\sqrt{3}}}$$
    Correct
    Wrong
  • 4
    $$ {-1\over {\sqrt{3}}}$$
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "$$ {-2\over {\sqrt{3}}}$$"

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully