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0.5x^2=-2x-3
We move all terms to the left:
0.5x^2-(-2x-3)=0
We get rid of parentheses
0.5x^2+2x+3=0
a = 0.5; b = 2; c = +3;
Δ = b2-4ac
Δ = 22-4·0.5·3
Δ = -2
Delta is less than zero, so there is no solution for the equation
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