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0=2t^2-84t+1025
We move all terms to the left:
0-(2t^2-84t+1025)=0
We add all the numbers together, and all the variables
-(2t^2-84t+1025)=0
We get rid of parentheses
-2t^2+84t-1025=0
a = -2; b = 84; c = -1025;
Δ = b2-4ac
Δ = 842-4·(-2)·(-1025)
Δ = -1144
Delta is less than zero, so there is no solution for the equation
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