Algebra Practice Question and Answer

Q:

рдпрджрд┐ a=26 and b=22, рд╣реИ, рддреЛ┬а$${{a^3-b^3}\over {a^2-b^2}}-{3ab\over a+b}$$ ┬ардХрд╛ рдорд╛рди рд╣реИ:

543 0

  • 1
    $$11\over 13$$
    Correct
    Wrong
  • 2
    $$1\over 3$$
    Correct
    Wrong
  • 3
    $$5\over 3$$
    Correct
    Wrong
  • 4
    $$13\over 11$$
    Correct
    Wrong
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Answer : 2. "$$1\over 3$$"

Q:

рдпрджрд┐┬а$$m+{1\over(m-2)}=4$$, рд╣реИ, рддреЛ┬а$$ (m-2)^2+ \left({{1\over {m-2}}} \right)^2 \ $$ рдХрд╛ рдорд╛рди рдЬреНрдЮрд╛рдд рдХреАрдЬрд┐рдП

341 0

  • 1
    2
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    4
    Correct
    Wrong
  • 4
    -2
    Correct
    Wrong
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Answer : 1. "2"

Q:

рдпрджрд┐┬а$${5x-{5\over x}+6=0}$$, рддреЛ┬а$$x^2+{1\over x^2}$$ рд╣реИ

345 0

  • 1
    $$86\over11$$
    Correct
    Wrong
  • 2
    $$43\over12$$
    Correct
    Wrong
  • 3
    $$86\over25$$
    Correct
    Wrong
  • 4
    $$81\over10$$
    Correct
    Wrong
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Answer : 3. "$$86\over25$$"

Q:

рдпрджрд┐ x + y + 3 = 0 , рддреЛ x3+y3-9xy+9┬ардХрд╛ рдорд╛рди рдЬреНрдЮрд╛рдд рдХреАрдЬрд┐рдПред

425 0

  • 1
    18
    Correct
    Wrong
  • 2
    36
    Correct
    Wrong
  • 3
    -36
    Correct
    Wrong
  • 4
    -18
    Correct
    Wrong
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Answer : 4. "-18 "

Q:

рдпрджрд┐ (x + 6y) = 8, рдФрд░ xy = 2, рдЬрд╣рд╛рдБ x > O, (x3+216y3) рдХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реИ?

539 0

  • 1
    476
    Correct
    Wrong
  • 2
    288
    Correct
    Wrong
  • 3
    224
    Correct
    Wrong
  • 4
    368
    Correct
    Wrong
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Answer : 3. "224"

Q:

рдпрджрд┐ x = z = 225 рдФрд░ y = 226 рддреЛ x3 + y3 + z3 тАУ 3xyz рдХрд╛ рдорд╛рди рд╣реИ

509 0

  • 1
    765
    Correct
    Wrong
  • 2
    676
    Correct
    Wrong
  • 3
    576
    Correct
    Wrong
  • 4
    674
    Correct
    Wrong
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Answer : 2. "676 "

Q:

рдпрджрд┐┬аx2 + x = 5 рддреЛ┬а$${(x+3)^3}+{1\over (x+3)^3}$$ ┬ардХрд╛ рдорд╛рди рд╣реИ┬а

372 0

  • 1
    140
    Correct
    Wrong
  • 2
    110
    Correct
    Wrong
  • 3
    130
    Correct
    Wrong
  • 4
    120
    Correct
    Wrong
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Answer : 2. "110 "

Q:

рдпрджрд┐ m = - 4, n = - 2, рддреЛ m3┬атАУ 3m2┬а+ 3m + 3n + 3n2 + n3 рдХрд╛ рдорд╛рди рд╣реИ

392 0

  • 1
    тАУ 126
    Correct
    Wrong
  • 2
    124
    Correct
    Wrong
  • 3
    тАУ 124
    Correct
    Wrong
  • 4
    126
    Correct
    Wrong
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Answer : 1. "тАУ 126 "

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