2010013302 | math4u.vsb.cz

SubArea:

Quadratic equations with complex roots

Level:

Project ID:

2010013302

Source Problem:

Accepted:

0

Clonable:

1

Easy:

0

Find the quadratic equation with real coefficients such that one of the solutions is the complex number

x_{1} = 1 - 2 \sqrt{2} i

.

x^{2} - 2 x + 9 = 0

x^{2} + 2 x - 9 = 0

x^{2} - 2 x - 7 = 0

x^{2} + 9 x - 2 = 0