Question
Which quadratic equations have two solutions? Check all that apply.
y\ =\ x^{2}-8x-20
y\ =\ x^{2}+3
y\ =\ x^{2}+3
y\ =\ x^{2}+3
y\ =-2x^{2}-5x-4
y\ =4x^{2}+12x+9
y\ =\ x^{2}-8x-20
y\ =\ x^{2}+3
y\ =\ x^{2}+3
y\ =\ x^{2}+3
y\ =-2x^{2}-5x-4
y\ =4x^{2}+12x+9
Answers
GPT 3.5
The quadratic equations that have two solutions are:
y = x^2 - 8x - 20
y = -2x^2 - 5x - 4
y = 4x^2 + 12x + 9
These equations have two solutions because the discriminant (b^2 - 4ac) is greater than zero, indicating two distinct real roots.
y = x^2 - 8x - 20
y = -2x^2 - 5x - 4
y = 4x^2 + 12x + 9
These equations have two solutions because the discriminant (b^2 - 4ac) is greater than zero, indicating two distinct real roots.