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0=5t^2+11t+12
We move all terms to the left:
0-(5t^2+11t+12)=0
We add all the numbers together, and all the variables
-(5t^2+11t+12)=0
We get rid of parentheses
-5t^2-11t-12=0
a = -5; b = -11; c = -12;
Δ = b2-4ac
Δ = -112-4·(-5)·(-12)
Δ = -119
Delta is less than zero, so there is no solution for the equation
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