148k views
5 votes
What is the discriminant of the quadratic equation 3 - 4x = -6x^2

-68
-56
76
88

2 Answers

2 votes
The discriminant is -56.

The discriminant is found using

b²-4ac, after the quadratic is in standard form. First, we will add 6x² to both sides to write it in standard form:
3-4x=-6x²
3-4x+6x²=-6x²+6x²
6x²-4x+3=0

We can now see that b=-4, a=6 and c=3:

(-4)²-4(6)(3)
16-72
-56
User Mr Qian
by
7.8k points
4 votes

Answer: B) -56

Step-by-step explanation: In a quadratic equation, the discriminant helps tell you the number of real solutions and it is:


b^(2) -4ac

To calculate the discriminant of the given equation, we need to write it in the standard form (we equal it to zero):


6x^(2) -4x+3=0

here we can see that a=6; b=-4; and c=3

so the discriminant would be:


(-4)^(2) -4*6*3=

16-72=-56

User Kuslahne
by
7.2k 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