What is the value of the discriminant of the quadratic equation -2x =-8x+8, and what does its value mean about the number
of real number solutions the equation has?

Respuesta :

For this case we have the following quadratic equation:

[tex]-2x ^ 2 = -8x + 8[/tex]

This is equivalent to:

[tex]2x ^ 2-8x + 8 = 0[/tex]

Where:

[tex]a = 2\\b = -8\\c = 8[/tex]

The discriminant is given by:

[tex]d = b ^ 2-4 (a) (c)[/tex]

Substituting the values we have:

[tex]d = (- 8) ^ 2-4 (2) (8)\\d = 64-64\\d = 0[/tex]

The discriminant is zero, so the equation has two equal real roots.

Answer:

The equation has two equal real roots.