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0.5x^2-3.5+5=0
We add all the numbers together, and all the variables
0.5x^2+1.5=0
a = 0.5; b = 0; c = +1.5;
Δ = b2-4ac
Δ = 02-4·0.5·1.5
Δ = -3
Delta is less than zero, so there is no solution for the equation
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