62.8k views
4 votes
What is the discriminant of 3x2 + 6x = 2?. a.12. b.18. c.42. d.60

User Lasandra
by
8.8k points

2 Answers

2 votes
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
User Serhii Onishchenko
by
7.6k points
1 vote
Answer:
D. 60

Step-by-step 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 :)
User Manabu
by
8.0k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories