Find the Sum and Product of the Roots of the Quadratic Equation x^2+2x-5=0

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

Step 1

Find $a$ , $b$ , and $c$ .

Once the quadratic is in standard form, the values of $a$ , $b$ , and $c$ can be found.

$a x^{2} + b x + c$

Use the standard form of the equation to find $a$ , $b$ , and $c$ for this quadratic.

$a = 1$ , $b = 2$ , $c = - 5$

Step 2

Substitute the values into the sum of roots formula $- \frac{b}{a}$ .

Divide $- 2$ by $1$ .

$- 2$

Step 3

Substitute the values into the product of roots formula $\frac{c}{a}$ .

Divide $- 5$ by $1$ .

$- 5$

Step 4

List the results.

Sum of the roots is $- 2$

Product of the roots is $- 5$