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2.5=-16t^2+12t
We move all terms to the left:
2.5-(-16t^2+12t)=0
We get rid of parentheses
16t^2-12t+2.5=0
a = 16; b = -12; c = +2.5;
Δ = b2-4ac
Δ = -122-4·16·2.5
Δ = -16
Delta is less than zero, so there is no solution for the equation
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