Y=-0.2x^2+0.4x-2

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Solution for Y=-0.2x^2+0.4x-2 equation: 



=-0.2Y^2+0.4Y-2

We move all terms to the left:

-(-0.2Y^2+0.4Y-2)=0

We get rid of parentheses

0.2Y^2-0.4Y+2=0

a = 0.2; b = -0.4; c = +2;
Δ = b2-4ac
Δ = -0.42-4·0.2·2
Δ = -1.44
Delta is less than zero, so there is no solution for the equation

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