x=-2x^2-9

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Solution for x=-2x^2-9 equation: 



x=-2x^2-9

We move all terms to the left:

x-(-2x^2-9)=0

We get rid of parentheses

2x^2+x+9=0

a = 2; b = 1; c = +9;
Δ = b2-4ac
Δ = 12-4·2·9
Δ = -71
Delta is less than zero, so there is no solution for the equation

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