O 1
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The discriminant of the quadratic equation 3x2 - 4x - 2 = 0 is
O 20
O 24
O 48
O 40
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asrayounuskhan11
asrayounuskhan11
02.02.2020
Math
Secondary School
+5 pts
Answered
find the discriminant of the quadratic equation 3 x square - 6 x minus 4 equal to zero and hence find nature of its roots
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harendrachoubay
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The value of discriminant, D = 84 and the nature of the roots are real and unequal.
Step-by-step explanation:
The quadratic equation:
Here, a = 3, b = - 6 and c = - 4
To find, the value of discriminant = ?
Also, the nature of roots = ?
We know that,
Discriminant , D
=
=
= 36 + 12(4)
= 36 + 48
= 84
∴ The value of discriminant, D = 84
D > 0, the roots are real and unequal.
Thus, the value of discriminant, D = 84 and the nature of the roots are real and unequal.