Algebra Practice Question and Answer

Q:

If (x+y+z)=12, xy+yz+zx=44 and xyz=48, then what is the value of x3+y3+z3=?

1479 0

  • 1
    104
    Correct
    Wrong
  • 2
    144
    Correct
    Wrong
  • 3
    288
    Correct
    Wrong
  • 4
    196
    Correct
    Wrong
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Answer : 3. "288"

Q:

If a=34, b=c=33, then the value of a3+b3+c3-3abc is 

1476 0

  • 1
    50
    Correct
    Wrong
  • 2
    100
    Correct
    Wrong
  • 3
    0
    Correct
    Wrong
  • 4
    111
    Correct
    Wrong
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Answer : 2. "100"

Q:

Given that 100.48 = x, 100.70 = y and x2 = y2, then the value of z is close to

1465 0

  • 1
    1.45
    Correct
    Wrong
  • 2
    1.88
    Correct
    Wrong
  • 3
    2.9
    Correct
    Wrong
  • 4
    3.7
    Correct
    Wrong
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Answer : 3. "2.9"

Q:

Simplification 

1458 0

  • 1
    3/2
    Correct
    Wrong
  • 2
    5/2
    Correct
    Wrong
  • 3
    7/2
    Correct
    Wrong
  • 4
    11/2
    Correct
    Wrong
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Answer : 3. "7/2"

Q:

If x+y=10 and xy=4, then what is the value of x4+y4=?

1421 0

  • 1
    8432
    Correct
    Wrong
  • 2
    8464
    Correct
    Wrong
  • 3
    7478
    Correct
    Wrong
  • 4
    6218
    Correct
    Wrong
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Answer : 1. "8432"

Q:

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

1405 0

  • 1
    27
    Correct
    Wrong
  • 2
    64
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 1. "27"

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 

1403 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
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Answer : 2. "a = 6, b = 7"

Q:

If x - y = 3, then what is the value of x- y3-9xy? 

1401 0

  • 1
    18
    Correct
    Wrong
  • 2
    27
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
  • Show Answer
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Answer : 2. "27 "

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