2-x=-x2

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Solution for 2-x=-x2 equation: 



2-x=-x2

We move all terms to the left:

2-x-(-x2)=0

We add all the numbers together, and all the variables

-(-1x^2)-x+2=0

We add all the numbers together, and all the variables

-(-1x^2)-1x+2=0

We get rid of parentheses

1x^2-1x+2=0

We add all the numbers together, and all the variables

x^2-1x+2=0

a = 1; b = -1; c = +2;
Δ = b2-4ac
Δ = -12-4·1·2
Δ = -7
Delta is less than zero, so there is no solution for the equation

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