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Home Aptitude Quadratic Equation Comments

  • Question
  • ?. 8x 2 + 6x = 5
    ?. 12y 2 ? 22y + 8 = 0


  • Options
  • A. 1
  • B. 2
  • C. 3
  • D. 4

  • Correct Answer


  • Explanation


  • Quadratic Equation problems


    Search Results


    • 1. 
      ?. 18x 2 + 18x + 4 = 0
      ?. 12y 2 + 29y + l4 = 0

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 2. 
      ?. 4x + 7y = 209
      ?. 12x ? 14y = ? 38

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 3. 
      Construct a quadratic equation whose roots have the sum = 6 and product = ?16.

    • Options
    • A. x2 - 6x - 16 = 0
    • B. x2 + 6x - 16 = 0
    • C. x2 - ?3x - 16 = 0
    • D. None of these
    • Discuss
    • 4. 
      One root of the quadratic equation x2 - 5 x + 6 = 0 is 3. Find the other root.

    • Options
    • A. 2
    • B. ?2
    • C. 1
    • D. ?1
    • Discuss
    • 5. 
      If one roots of the equation x 2/a = x/b + 1/c = 0 is reciprocal of the other, then which one of the following is correct?

    • Options
    • A. a = b
    • B. b = c
    • C. ac = 1
    • D. a = c
    • Discuss
    • 6. 
      ?. 16x 2 + 20x + 6 = 0
      ?.10y 2 + 38y + 24 = 0

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 7. 
      ?. 17x 2 + 48x = 9
      ?.13y 2 = 32y ?12

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss
    • 8. 
      The roots of the equation a2x2 - 3abx + 2b2 = 0 are

    • Options
    • A. 2b , - b a a
    • B. 2b , b a a
    • C. - 2b , - b a a
    • D. None of these
    • Discuss
    • 9. 
      If ? and ? are the roots of the quadratic equation ax 2 + bx + c = 0, the value of ?3 + ?3 is

    • Options
    • A. b (b2 - 3ac ) a 3
    • B. b ( 3ac - b2 ) a 3
    • C. b ( 3ac + b2 ) a 3
    • D. None of these
    • Discuss
    • 10. 
      For what value of k the quadratic polynomial 3z2 + 5z + k can be factored into product of real linear factors?

    • Options
    • A. k ? 25 6
    • B. k ? 25 12
    • C. k ? 25 12
    • D. k ? 25 6
    • Discuss


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