Question

please give me step by step explain​

Answer 1

Answer:40

Step-by-step explanation:

Discriminate = b^2-4ac

b= 2, a= 1, c=-9

=2^2 - 4×1×-9

= 4+36

=40

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Answer 2

Answer:

40

Step-by-step explanation:

Here a=1 ,b= 2 , c=-9

discriminate value = b^2-4ac

= 2^2-4(1)(-9)

4+36

40

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