SOLUTION: 8t2 + 18t + 9

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Question 301907: 8t2 + 18t + 9

Answer by london maths tutor(243) About Me  (Show Source):
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8t^2 + 18t + 9 = 0
( 2t + 3) ( 4t + 3) = 0

This gives:
2t+3 = 0
t = -3/2 = -1 1/2
or
4t + 3 = 0
t = -3/4