2000001509 | math4u.vsb.cz

SubArea:

Quadratic equations with complex roots

Level:

Project ID:

2000001509

Accepted:

0

Clonable:

0

Easy:

1

Find the right formula for solving the equation

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

.

x_{1, 2} = \frac{- 5 \pm i \sqrt{15}}{4}

x_{1, 2} = \frac{5 \pm i \sqrt{15}}{4}

x_{1, 2} = \frac{- 5 \pm i \sqrt{15}}{2}

x_{1, 2} = \frac{- 5 i \pm i \sqrt{40}}{4}