Question

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Q.3 What will be the nature of roots of quadratic equation 2x^2 + 4x - 7= 0​

Answer 1

Answer:

a = 2 , b= 4 , c= -7

by quadratic formula ,

∆=

= 16 - 4 x -14

=16 - (-56)

∆= 76

The roots are real and distinct.

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Answer 2

Step-by-step explanation:

∆= b^2-4ac=(4)^2-4(2)(-7)

=72

72>0

Nature of root is: two distinct real roots