Y=-x2-2(2)+1

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Solution for Y=-x2-2(2)+1 equation: 



=-Y2-2(2)+1

We move all terms to the left:

-(-Y2-2(2)+1)=0

We add all the numbers together, and all the variables

-(-1Y^2-22+1)=0

We get rid of parentheses

1Y^2+22-1=0

We add all the numbers together, and all the variables

Y^2+21=0

a = 1; b = 0; c = +21;
Δ = b2-4ac
Δ = 02-4·1·21
Δ = -84
Delta is less than zero, so there is no solution for the equation

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