Find the Discriminant -3x^2-x-5=0

$- 3 x^{2} - x - 5 = 0$

Step 1

The discriminant of a quadratic is the expression inside the radical of the quadratic formula.

$b^{2} - 4 (a c)$

Step 2

Substitute in the values of $a$ , $b$ , and $c$ .

${(- 1)}^{2} - 4 (- 3 \cdot - 5)$

Step 3

Evaluate the result to find the discriminant.

Simplify each term.

Raise $- 1$ to the power of $2$ .

$1 - 4 (- 3 \cdot - 5)$

Multiply $- 4 (- 3 \cdot - 5)$ .

Multiply $- 3$ by $- 5$ .

$1 - 4 \cdot 15$

Multiply $- 4$ by $15$ .

$1 - 60$

Subtract $60$ from $1$ .

$- 59$