84=5t-1.5t2

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Solution for 84=5t-1.5t2 equation: 



84=5t-1.5t^2

We move all terms to the left:

84-(5t-1.5t^2)=0

We get rid of parentheses

1.5t^2-5t+84=0

a = 1.5; b = -5; c = +84;
Δ = b2-4ac
Δ = -52-4·1.5·84
Δ = -479
Delta is less than zero, so there is no solution for the equation

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