1003123805 | math4u.vsb.cz

SubArea:

Quadratic equations and inequalities

Level:

Project ID:

1003123805

Accepted:

1

Clonable:

0

Easy:

1

Choose the equation which has the double root equal to zero.

2 x^{2} = 0

x^{2} + x = 0

x^{2} - x = 0

- x^{2} + x = 0