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-5t-3t^2=4t^2+4
We move all terms to the left:
-5t-3t^2-(4t^2+4)=0
We get rid of parentheses
-3t^2-4t^2-5t-4=0
We add all the numbers together, and all the variables
-7t^2-5t-4=0
a = -7; b = -5; c = -4;
Δ = b2-4ac
Δ = -52-4·(-7)·(-4)
Δ = -87
Delta is less than zero, so there is no solution for the equation
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