Question

find the sum of the zeros of x square - 3 x minus one​

Answer 1

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Answer 2

The sum of the zeros of the given quadratic equation = 3

Step-by-step explanation:

The given quadratic equation:

$x^{2}$ - 3x - 1 = 0

Here, a = 1, b = - 3 and c= - 1

To find, the sum of the zeros of the given quadratic equation = ?

If α and β be the two zeroes of the quadratic equation.

∴ The sum of the zeros ( α + β) = $-\dfrac{b}{a}$

The sum of the zeros of the given quadratic equation

=$-\dfrac{-3}{1}$

= 3

The sum of the zeros of the given quadratic equation = 3