The discriminant of the quadratic equation $5 x^{2} - 6 x + 1 = 0$ is

16

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\sqrt{56}

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4

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56

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Solution

The correct option is D $16$
The given quadratic equation is $5 x^{2} - 6 x + 1 = 0$ is in the form of $a x^{2} + b x + c$
by comparing $a = 5, b = - 6, c = 1$

Now, Discriminant $D = b^{2} - 4 a c$

$D = 36 - 4 \times 5 \times 1$

$D = 36 - 20 = 16$

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