for this quadratic equation:

Question

y2-4y-16 = 0

which two options are correct solutions, rounded to three decimal places?

1) -4.483 2) -3.243 3)-2.472
4) -1.472 5) -0.536 6) 5.243
7) 6.472 8) 12.443

Use the quadratic equation, we will be happy to critique your solution.