Question

Which quadratic equations have two solutions?
Y = x^2 - 8x - 20
Y = x^2 + 3
Y = -x^2 + 2x + 1
Y = x^2 - 25
Y = 4x^2 + 12x + 9
Y = -2x^2 - 5x - 4

Answer 1

The quadratic equations that have two solutions are:
1. Y = x^2 - 8x - 20
2. Y = -x^2 + 2x + 1
3. Y = x^2 - 25
4. Y = 4x^2 + 12x + 9