Algebra Practice Question and Answer

Q:

рдпрджрд┐ (x + y)3 +8 (x - y)3 = (3x+ Ay)(3x2+ Bxy+ Cy2), рддреЛ A+B+C рдХрд╛ рдорд╛рди рд╣реИ:

1122 0

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

Q:

рдорд╛рди рд▓реАрдЬрд┐рдП

P = 12xy тАУ 10y2 тАУ 18x2,

Q = 14x2 + 12y2 + 9xy, and

R = 5y2 тАУ x2┬а+ xy рдФрд░

рддрдм (P + Q) тАУ R =

1118 0

  • 1
    22xy тАУ 3x2 + 3y2┬а
    Correct
    Wrong
  • 2
    22xy + 3x2 тАУ 3y2┬а
    Correct
    Wrong
  • 3
    20xy тАУ 3x2┬атАУ 3y2
    Correct
    Wrong
  • 4
    20xy тАУ 3x2┬атАУ 3y2
    Correct
    Wrong
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Answer : 4. "20xy тАУ 3x2┬атАУ 3y2"

Q:

рдпрджрд┐ 9x2 + y2 = 37 рдФрд░ xy = 2, x, y>0, рддреЛ (27x3+ y3) рдХрд╛ рдорд╛рди рд╣реИ:

1117 0

  • 1
    301
    Correct
    Wrong
  • 2
    217
    Correct
    Wrong
  • 3
    207
    Correct
    Wrong
  • 4
    259
    Correct
    Wrong
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Answer : 2. "217"

Q:

рдпрджрд┐ 6x2+13x+7=0, рдХреЗ рдореВрд▓ ╬▒ рдФрд░ ╬▓ рд╣реИрдВ, рддрдм ╬▒2, ╬▓2 рдореВрд▓ рд╡рд╛рд▓рд╛ рд╕рдореАрдХрд░рдг рдХреНрдпрд╛ рд╣реЛрдЧрд╛?

1112 0

  • 1
    36x2 тИТ 87x + 49 = 0
    Correct
    Wrong
  • 2
    36x2┬атИТ 85x тИТ 49 = 0
    Correct
    Wrong
  • 3
    36x2┬атИТ 85x + 49 = 0
    Correct
    Wrong
  • 4
    36x2┬а+ 87x тИТ 49 = 0
    Correct
    Wrong
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Answer : 3. "36x2┬атИТ 85x + 49 = 0"

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Answer : 1. "0"

Q:

рдпрджрд┐ x = 2 рддреЛ x3 + 27x2 + 243x + 631 рдХрд╛ рдорд╛рди рд╣реИ

1111 0

  • 1
    1233
    Correct
    Wrong
  • 2
    1211
    Correct
    Wrong
  • 3
    1231
    Correct
    Wrong
  • 4
    1321
    Correct
    Wrong
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Answer : 1. "1233 "

Q:

рдпрджрд┐ (3x тАУ 2y) : (2x + 3y) = 5 : 6, рддреЛ┬а$${\left({^3\sqrt { x}+\ ^3\sqrt { y}\over ^3\sqrt { x}-\ ^3\sqrt { y} } \right) \ }^2$$ ┬ардХрд╛ рдПрдХ рдорд╛рди рд╣реИ

1096 0

  • 1
    $$1\over 5$$
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    $$1\over 25$$
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 4. "25"

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