Question

What are the values of a, b, and c in the quadratic equation –2x2 + 4x – 3 = 0?

Answer 1

Answer:

a=-2

b=4

c=-3

Step-by-step explanation:

You just compare -2x^2+4x-3=0 to

                              ax^2+bx+c=0

There is really no work here.

Answer 2

For this case we have that by definition, a quadratic equation is of the form:

$ax ^ 2 + bx + c = 0$

The roots are given by:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}$

We have the following equation:

$-2x ^ 2 + 4x-3 = 0$

So:

$a = -2\\b = 4\\c = -3$

Answer:

$a = -2\\b = 4\\c = -3$