(C) The given quadratic equation is $5x^{2} + 2x - 1 = 0$.Comparing this with the standard form $ax^{2} + bx + c = 0$,we get $a = 5$,$b = 2$,and $c =

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(C) The given quadratic equation is $5x^{2} + 2x - 1 = 0$.Comparing this with the standard form $ax^{2} + bx + c = 0$,we get $a = 5$,$b = 2$,and $c = -1$.The discriminant $D$ is given by the formula $D = b^{2} - 4ac$.Substituting the values,we get $D = (2)^{2} - 4(5)(-1)$.$D = 4 + 20 = 24$.Therefore,the discriminant is $24$.

Class 10 Mathematics Quadratic Equations Mix Examples - Quadratic Equations

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Find the discriminant of the following quadratic equation: $5x^{2} + 2x - 1 = 0$.

A
$28$
B
$38$
C
$24$
D
$70$

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Mix Examples - Quadratic Equations

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Find the discriminant of the following quadratic equation: $5x^{2} + 2x - 1 = 0$.

Similar Questions

Solve the following quadratic equation using the quadratic formula,if the equation has a solution in $R$: $x^{2}+5x+3=0$.

The value of the discriminant of the quadratic equation $x^{2}-8x+15=0$ is ...... .

If the roots of the following quadratic equation exist,find them by the method of completing the square: $(2x + 1) - \frac{4}{(2x + 1)} - 3 = 0$.

Examine whether the following equation is quadratic or not: $7x = 2x^2$.

Solve the following quadratic equation using the method of factorization: $3x^{2} = -11x - 10$.

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