Y-x2=8-4x

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Solution for Y-x2=8-4x equation: 



-Y2=8-4Y

We move all terms to the left:

-Y2-(8-4Y)=0

We add all the numbers together, and all the variables

-Y2-(-4Y+8)=0

We add all the numbers together, and all the variables

-1Y^2-(-4Y+8)=0

We get rid of parentheses

-1Y^2+4Y-8=0

a = -1; b = 4; c = -8;
Δ = b2-4ac
Δ = 42-4·(-1)·(-8)
Δ = -16
Delta is less than zero, so there is no solution for the equation

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