Equation Questions Practice Question and Answer

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Answer : 2. "$$x^2 + 11x - 1 = 0$$"

Q:

рдпрджрд┐┬а2x + 3y = 87┬ардФрд░┬а3x тАУ 3y = 48┬ард╣реИ рддреЛ┬аx рдХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реИ?

1237 0

  • 1
    29
    Correct
    Wrong
  • 2
    11
    Correct
    Wrong
  • 3
    72
    Correct
    Wrong
  • 4
    рдЗрдирдореЗрдВ рд╕реЗ рдХреЛрдИ рдирд╣реАрдВ
    Correct
    Wrong
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Answer : 4. "рдЗрдирдореЗрдВ рд╕реЗ рдХреЛрдИ рдирд╣реАрдВ"

Q:

$$ x^2-2x-15 $$ рдХреЗ рдореВрд▓ рд╣реИред

1010 0

  • 1
    (x+5) (xтАУ3)
    Correct
    Wrong
  • 2
    (xтАУ5) (xтАУ3)
    Correct
    Wrong
  • 3
    (xтАУ3) (xтАУ1)
    Correct
    Wrong
  • 4
    (xтАУ5) (x+3)
    Correct
    Wrong
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Answer : 4. "(xтАУ5) (x+3)"

Q:

рдпрджрд┐┬а$$ {4x^2}={25}^2-{15}^2 $$, ┬ард╣реИ рддреЛ┬аx.рдХрд╛ рдорд╛рди рд╣реИред

1102 0

  • 1
    10
    Correct
    Wrong
  • 2
    50
    Correct
    Wrong
  • 3
    100
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 1. "10 "

Q:

рдпрджрд┐┬а3x+0.04x=0.608, рд╣реИ рддреЛ┬аx рдХрд╛ рдорд╛рди рдЬреНрдЮрд╛рдд рдХрд░реЗрдВ

1322 0

  • 1
    2
    Correct
    Wrong
  • 2
    0.2
    Correct
    Wrong
  • 3
    0.02
    Correct
    Wrong
  • 4
    0.002
    Correct
    Wrong
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Answer : 2. "0.2 "

Q:

рд╣рд▓ рдХрд░реЗрдВ 0.05 ├Ч 0.4┬а

1021 0

  • 1
    2
    Correct
    Wrong
  • 2
    0.02
    Correct
    Wrong
  • 3
    0.2
    Correct
    Wrong
  • 4
    0.002
    Correct
    Wrong
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Answer : 2. "0.02 "

Q:

рдпрджрд┐┬а┬аa + b = -2 рдФрд░┬а┬аa - b = 12, рд╣реИ рддреЛ┬аb┬ардХрд╛ рдорд╛рди рдЬреНрдЮрд╛рдд рдХрд░реЗрдВ

1056 0

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

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