Which of the given formulae is the correct one to find out the roots of the quadratic equation $a x^{2} + b x + c = 0$ ?

x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2}

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x = \frac{b \pm \sqrt{b^{2} - 4 a c}}{2}

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x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}

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x = \frac{b \pm \sqrt{b^{2} - 4 a c}}{2 a}

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Solution

The correct option is D $x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}$
Roots of the quadratic equation $a x^{2} + b x + c = 0$ can be found out by using the quadratic formula, given by,
$x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}$ .

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Which of the given formulae is the correct one to find out the roots of the quadratic equation ax2+bx+c=0?

The correct option is D x=−b±√b2−4ac2aRoots of the quadratic equation ax2+bx+c=0 can be found out by using the quadratic formula, given by, x=−b±√b2−4ac2a.

Which of the given formulae is the correct one to find out the roots of the quadratic equation $a x^{2} + b x + c = 0$ ?

The correct option is D $x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}$
Roots of the quadratic equation $a x^{2} + b x + c = 0$ can be found out by using the quadratic formula, given by,
$x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}$ .