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0=-16t^2+48t-48
We move all terms to the left:
0-(-16t^2+48t-48)=0
We add all the numbers together, and all the variables
-(-16t^2+48t-48)=0
We get rid of parentheses
16t^2-48t+48=0
a = 16; b = -48; c = +48;
Δ = b2-4ac
Δ = -482-4·16·48
Δ = -768
Delta is less than zero, so there is no solution for the equation
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