Algebra Practice Question and Answer

Q:

рдпрджрд┐┬а5тИЪx + 12тИЪx = 13тИЪx┬ард╣реИ рддреЛ┬аx┬ардХрд┐рд╕рдХреЗ рдмрд░рд╛рдмрд░ рд╣реИ┬а?

766 0

  • 1
    9
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    $${25\over4}$$
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
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Answer : 4. "4"

Q:

рдпрджрд┐┬а$${\sqrt{7-2}\over\sqrt{7+2}}=a\sqrt{7}+b$$,рд╣реИ рддреЛ┬аa рдХрд╛ рдорд╛рди рдЬреНрдЮрд╛рдд рдХрд░реЗ┬а

639 0

  • 1
    $${4\over3}$$
    Correct
    Wrong
  • 2
    $${-4тИЪ7\over3}$$
    Correct
    Wrong
  • 3
    $${11\over2}$$
    Correct
    Wrong
  • 4
    $$-{4\over3}$$
    Correct
    Wrong
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Answer : 4. " $$-{4\over3}$$"

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Answer : 2. " $$-{5\over 4}$$"

Q:

рдпрджрд┐┬аa=7, b = 5 and c = 3┬ард╣реИ рддреЛ┬а$$a^2+b^2+c^2-ab-bc-ca$$┬ардХрд╛ рдорд╛рди рдХреНрдпрд╛ рд╣реЛрдЧрд╛┬а?

727 0

  • 1
    0
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    -12
    Correct
    Wrong
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Answer : 3. "12 "

Q:

рдпрджрд┐┬а$$ P={{x^2-36}\over{x^2-49}}$$ ┬ардФрд░┬а$$ Q={{x+6}\over{x+7}}$$┬а┬ард╣реИ рддреЛ┬а┬а$$ {P\over{Q}}$$┬а┬ардХрд╛ рдорд╛рди рд╣реЛрдЧрд╛ред

836 0

  • 1
    $$ {x-6}\over {x-7}$$
    Correct
    Wrong
  • 2
    $$ {x-6}\over {x+7}$$
    Correct
    Wrong
  • 3
    $$ {x-7}\over {x+6}$$
    Correct
    Wrong
  • 4
    $$ {x+6}\over {x-7}$$
    Correct
    Wrong
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Answer : 1. "$$ {x-6}\over {x-7}$$"

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