Question

What is the value of b^2 - 4ac for the following equation

2x^2 + 3x = -1

Answer 1

In that quadratic equation:

a = 2 b = 3 and c = 1

b^2 -4*a*c equals

9 -4 * 2 * 1 =

9 -8=

1

Explanation:

Answer 2

1

Explanation:

We are finding the discriminant of the function

It needs to be written in the form ax^2 +bx+c =0

2x^2 +3x = -1

Add 1 to each side

2x^2 +3x+1 = -1+1

2x^2 +3x+1 = -0

b^2 -4ac

a=2 b=3 and c = 1

3^2 - 4(2)(1)

9 - 8

1