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If α + β = -2 and αβ = -3 where a and are the roots of the equation, which is :
  • a)
    x2 – 2x – 3 = 0
  • b)
    x2 + 2x – 3 = 0
  • c)
    x2 + 2x + 3 = 0
  • d)
    x2 – 2x + 3 = 0
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
If α + β = -2 and αβ = -3 where a and are the ro...
Quadratic Eqn. having roots α and β is
x2 – (α + β)x + αβ = 0
or ; x2 – (- 2)x + (- 3)= 0
or; x2 + 2x – 3 = 0
(b) is correct.
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If α + β = -2 and αβ = -3 where a and are the roots of the equation, which is :a)x2– 2x – 3 = 0b)x2+ 2x – 3 = 0c)x2+ 2x + 3 = 0d)x2– 2x + 3 = 0Correct answer is option 'B'. Can you explain this answer? for Commerce 2025 is part of Commerce preparation. The Question and answers have been prepared according to the Commerce exam syllabus. Information about If α + β = -2 and αβ = -3 where a and are the roots of the equation, which is :a)x2– 2x – 3 = 0b)x2+ 2x – 3 = 0c)x2+ 2x + 3 = 0d)x2– 2x + 3 = 0Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Commerce 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If α + β = -2 and αβ = -3 where a and are the roots of the equation, which is :a)x2– 2x – 3 = 0b)x2+ 2x – 3 = 0c)x2+ 2x + 3 = 0d)x2– 2x + 3 = 0Correct answer is option 'B'. Can you explain this answer?.
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