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Quadratic Equations

Quiz by Swati Thukrul

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18 questions
Show answers
  • Q1
    Which of the following is a factor of y2-7y + 12 ?
    y + 3
    2y + 3
    2y – 2
    y – 3
    45s
  • Q2
    2. Which of the following is a factor of z2– 4z -- 12 ?
    z –6
    z + 2
    z + 6
    z2—12
    45s
  • Q3
    Expansion of (x + 3y)(x - y) gives:
    x + 3y - 2xy
    -2y + 3x
    x2 + 2xy - 3y2
    3y - 42x
    45s
  • Q4
    Factorize x2 + 8x + 12.
    (x + 2)(x + 6)
    3x + 12
    (x + 3)(x + 4)
    3x – 12
    45s
  • Q5
    Factorize b2+2b-15
    5(3b+5)
    (b+5)(b-3)
    3(b+5)
    (b-5)(b+3)
    45s
  • Q6
    The reciprocal of 17/25 is
    17/25
    2.5/17
    25/17
    1.7/100
    45s
  • Q7
    The sum of squares of two numbers is expressed as
    (a+b)2
    2a+2b
    a2+b2
    2(a+b)
    45s
  • Q8
    The sum square of a number and its reciprocal:
    x+1/x
    x+x2
    x2+1/x
    2x+2x2
    45s
  • Q9
    The sum of three times a number and half of that number is:
    3a+1/2 a
    3a+1/2 a2
    a3+1/2 a
    3(a+a2)
    45s
  • Q10
    Two more than four times a number
    2+4b
    4+2b
    2+b2
    2+b4
    45s
  • Q11
    The sum of squares of two consecutive odd natural numbers is:
    x+(x+1)2
    2[x+(x+1)]
    x2+(x+1)2
    x2+(x+1)
    45s
  • Q12
    The sum of squares of two consecutive even natural numbers is:
    x2+2(x+1)
    2[x+(x+1)]
    x2+(x+1)2
    x+(x+1)2
    45s
  • Q13
    If 5m = 0 then m = ______
    5
    1
    -5
    0
    45s
  • Q14
    Two numbers having product as -40 and sum as -3 are:
    -8 and 5
    10 and -4
    -5 and 8
    8 and 5
    45s
  • Q15
    Two numbers having product as 25 and sum as -10 are:
    -1 and -10
    5 and 5
    -10 and 1
    -5 and -5
    45s

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