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0.5x^2-x+13=0
We add all the numbers together, and all the variables
0.5x^2-1x+13=0
a = 0.5; b = -1; c = +13;
Δ = b2-4ac
Δ = -12-4·0.5·13
Δ = -25
Delta is less than zero, so there is no solution for the equation
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