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SOLUTION: t(3t-120)=-12
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Question 266185
:
t(3t-120)=-12
Answer by
stanbon(69061)
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t(3t-120)=-12
---
3t^2 -120t + 12 = 0
3(t^2 -40t + 4) = 0
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Quadratic formula:
t = [40 +- sqrt(1600 - 4*4)/2
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t = [40 +- sqrt(1584)]/2
---
t = [40 +- 39.80]/2
Find two solutions.
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Cheers,
Stan H.