| Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc) |
| Quadratic equation For these solutions to exist, the discriminant First, we need to compute the discriminant Discriminant d=28 is greater than zero. That means that there are two solutions: Quadratic expression Again, the answer is: 2.8228756555323, 0.177124344467705. Here's your graph: |
But if you're question is:
2t^3 -6t + 1 = 0
Then,
t(2t^2-6)=-1
then t=-1 or (2t^2-6)=-1
(2t^2-6)=-1
2t^2=-1+6
t^2=5/2
Then
Hope this helps,
Prabhat