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-4t^2+8t=32
We move all terms to the left:
-4t^2+8t-(32)=0
a = -4; b = 8; c = -32;
Δ = b2-4ac
Δ = 82-4·(-4)·(-32)
Δ = -448
Delta is less than zero, so there is no solution for the equation
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