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If ‘2’ is the zero of both the polynomials 3x2+mx−14 and 2x3+nx2+x−2, then the value of m – 2n is
  • a)
    9
  • b)
    – 9
  • c)
    – 1
  • d)
    5
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
If ‘2’ is the zero of both the polynomials3x2+mx−14 ...
According to the question, p (2) = 3x2 + mx - 14 = 0
⇒ 3(2)2 + m x 2 - 14 = 0
⇒ 12 + 2m - 14 = 0 ⇒ m = 1
 Also p(2) = 2x+ nx2 + x - 2 = 0


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If ‘2’ is the zero of both the polynomials3x2+mx−14 ...
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