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555=-16t^2+117.5
We move all terms to the left:
555-(-16t^2+117.5)=0
We get rid of parentheses
16t^2-117.5+555=0
We add all the numbers together, and all the variables
16t^2+437.5=0
a = 16; b = 0; c = +437.5;
Δ = b2-4ac
Δ = 02-4·16·437.5
Δ = -28000
Delta is less than zero, so there is no solution for the equation
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