Y=-2x2+4x-9

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Solution for Y=-2x2+4x-9 equation: 



=-2Y^2+4Y-9

We move all terms to the left:

-(-2Y^2+4Y-9)=0

We get rid of parentheses

2Y^2-4Y+9=0

a = 2; b = -4; c = +9;
Δ = b2-4ac
Δ = -42-4·2·9
Δ = -56
Delta is less than zero, so there is no solution for the equation

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