SOLUTION: Please help me solve: (2t-5)^2=24 I know I have to use the quadratic formula, but I can't figure it out.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Please help me solve: (2t-5)^2=24 I know I have to use the quadratic formula, but I can't figure it out.      Log On


   

Question 630041: Please help me solve:
(2t-5)^2=24
I know I have to use the quadratic formula, but I can't figure it out.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Please help me solve:
(2t-5)^2=24
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4t^2 - 20t + 25 = 24
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4t^2 - 20t + 1 = 0
t = [20 +- sqrt(400 - 4*4*1)/(8)
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t = [20 +- sqrt(384)]/8
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t = [20 +- 19.6]/8
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t = 39.6/8 or t = 0.4/8
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Cheers,
Stan H.