Question 39
Which quadratic equations have two solutions? Check all that apply.
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 - 5 x - 4
The following quadratic equations have two solutions:
1. y = x^2 - 8x - 20
3. y = x^2 + 2x + 1
4. y = x^2 - 25
5. y = 4x^2 + 12x + 9