2x=-x2-15

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Solution for 2x=-x2-15 equation: 



2x=-x2-15

We move all terms to the left:

2x-(-x2-15)=0

We add all the numbers together, and all the variables

-(-1x^2-15)+2x=0

We get rid of parentheses

1x^2+2x+15=0

We add all the numbers together, and all the variables

x^2+2x+15=0

a = 1; b = 2; c = +15;
Δ = b2-4ac
Δ = 22-4·1·15
Δ = -56
Delta is less than zero, so there is no solution for the equation

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