Question

What is the discriminant of 3x2 + 6x = 2?. a.12. b.18. c.42. d.60

Answer 1

Answer:
D. 60

Explanation:
The general form of the quadratic equation is:
ax² + bx + c = 0

The given equation is:
3x² + 6x = 2
This can be rewritten as:
3x² + 6x - 2 = 0

By comparison, we can find that:
a = 3
b = 6
c = -2

Now, the discriminant of a quadratic equation is given by:
b² - 4ac

Substitute with the given values to get the discriminant for the given equation as follows:
b² - 4ac = (6)² - 4(3)(-2) 
             = 36 - (-24)
             = 36 + 24
             = 60

Hope this helps :)

Answer 2

The correct answer is option D i.e. 60 The given equation is : 3x^2 + 6x - 2 = 0 The discriminant is given as = {b^2 - 4ac}/2a; where a = 3, b = 6 and c = -2d Thus, D = {6^2 - 4(3)(-2)} or D = {36 + 24} or D = 60