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Question

Sum of the zeros of the equation \(3x^2+2x-5\) is?

This question was previously asked in
RRB ALP 2018 CBT 2 Fitter Question Paper (21-Jan-2019) (Shift 3)
The correct answer is
-2/3

Finding the Sum of Zeros for \(3x^2+2x-5\)

For a quadratic equation in the standard form \(ax^2+bx+c=0\), the sum of its zeros (roots) is given by the formula:

Sum of zeros = \(\boldsymbol{-b/a}\)

Identify Coefficients

In the given equation, \(3x^2+2x-5 = 0\):

  • \(a = 3\)
  • \(b = 2\)
  • \(c = -5\)

Calculate the Sum of Zeros

Using the formula:

Sum of zeros = \(\boldsymbol{-b/a} = \boldsymbol{-(2)/(3)}\)

Sum of zeros = \(\boldsymbol{-2/3}\)

Conclusion

The sum of the zeros for the equation \(3x^2+2x-5\) is \(\boldsymbol{-2/3}\).

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