Y=X^2-2z+7

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Solution for Y=X^2-2z+7 equation: 



=Y^2-2Y+7

We move all terms to the left:

-(Y^2-2Y+7)=0

We get rid of parentheses

-Y^2+2Y-7=0

We add all the numbers together, and all the variables

-1Y^2+2Y-7=0

a = -1; b = 2; c = -7;
Δ = b2-4ac
Δ = 22-4·(-1)·(-7)
Δ = -24
Delta is less than zero, so there is no solution for the equation

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