-5x-2x2=x2-2x+18

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Solution for -5x-2x2=x2-2x+18 equation: 



-5x-2x^2=x2-2x+18

We move all terms to the left:

-5x-2x^2-(x2-2x+18)=0

We add all the numbers together, and all the variables

-2x^2-(+x^2-2x+18)-5x=0

We get rid of parentheses

-2x^2-x^2+2x-5x-18=0

We add all the numbers together, and all the variables

-3x^2-3x-18=0

a = -3; b = -3; c = -18;
Δ = b2-4ac
Δ = -32-4·(-3)·(-18)
Δ = -207
Delta is less than zero, so there is no solution for the equation

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