Question

5. Discriminant(D) of the
quadratic equation x2 +31=0 is
*124
*- 1 24
*0
*None of these​

Answer 1

Answer:

Step-by-step explanation:

x² + 31 = 0

or, x² + 0 x + 31 = 0

Here, a = 1, b = 0, c = 31

So,

D = b² - 4 a c

= 0² - 4 × 1 × 31

= 0 - 124

= - 124

Hence, option (b) - 124

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Answer 2

Step-by-step explanation:

Find the discriminant of the quadratic equation x2 + 31 = 0.

=4×1×31

=124