SOLUTION: t(3t-120)=-12

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: t(3t-120)=-12      Log On


   

Question 266185: t(3t-120)=-12
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
t(3t-120)=-12
---
3t^2 -120t + 12 = 0
3(t^2 -40t + 4) = 0
----
Quadratic formula:
t = [40 +- sqrt(1600 - 4*4)/2
---
t = [40 +- sqrt(1584)]/2
---
t = [40 +- 39.80]/2
Find two solutions.
--------------------
Cheers,
Stan H.