“ $b^{2} + 4 a c$ ” is called the discriminant of a quadratic equation $a x^{2} + b x + c$ .

True

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False

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Solution

The correct option is B False

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State true or false. The discriminant for general quadratic equation $a x^{2} + b x + c = 0$ is $b^{2} - 4 a c$ .

The roots of a quadratic equation $a x^{2} + b x + c = 0$ are given by $\frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}$ , provided $b^{2} - 4 a c \geq 0$ .

Q. If

b^{2} - 4 a c \geq 0

then the roots of quadratic equation

a x^{2} + b x + c = 0

is-

Q. What is the nature of the roots of the quadratic equation

a x^{2} + b x + c = 0

if
(a)

b^{2} - 4 a c = 0

(b)

b^{2} - 4 a c < 0

Q. What are the roots of the quadratic equation

a x^{2} + b x + c = 0 ?

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“b2+4ac” is called the discriminant of a quadratic equation ax2+bx+c.

The correct option is B False

“ $b^{2} + 4 a c$ ” is called the discriminant of a quadratic equation $a x^{2} + b x + c$ .