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-146=-66t+23t^2
We move all terms to the left:
-146-(-66t+23t^2)=0
We get rid of parentheses
-23t^2+66t-146=0
a = -23; b = 66; c = -146;
Δ = b2-4ac
Δ = 662-4·(-23)·(-146)
Δ = -9076
Delta is less than zero, so there is no solution for the equation
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