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If the zeroes of the quadratic polynomial ay2 + by + c, c ≠ 0 are equal, then
  • a)
    c and b have opposite signs
  • b)
    c and a have opposite signs
  • c)
    c and b have the same signs
  • d)
    c and a have the same signs
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
If the zeroes of the quadratic polynomial ay2 + by + c, c ≠ 0 are e...
Discriminant will be equal to zero for equal roots:
b2 - 4ac = 0
b2 = 4ac
ac = b2/4
ac > 0 (square of any number cannot be negative)
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Most Upvoted Answer
If the zeroes of the quadratic polynomial ay2 + by + c, c ≠ 0 are e...
Discriminant will be equal to zero for equal roots:
b2 - 4ac = 0
b2 = 4ac
ac = b2/4
ac > 0 (square of any number cannot be negative)
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Community Answer
If the zeroes of the quadratic polynomial ay2 + by + c, c ≠ 0 are e...
Discriminant will be equal to zero for equal roots:
b2 - 4ac = 0
b2 = 4ac
ac = b2/4
ac > 0 (square of any number cannot be negative)
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If the zeroes of the quadratic polynomial ay2 + by + c, c ≠ 0 are equal, thena)c and b have opposite signsb)c and a have opposite signsc)c and b have the same signsd)c and a have the same signsCorrect answer is option 'D'. Can you explain this answer?
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