-7=z2+1

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Solution for -7=z2+1 equation: 



-7=z2+1

We move all terms to the left:

-7-(z2+1)=0

We add all the numbers together, and all the variables

-(+z^2+1)-7=0

We get rid of parentheses

-z^2-1-7=0

We add all the numbers together, and all the variables

-1z^2-8=0

a = -1; b = 0; c = -8;
Δ = b2-4ac
Δ = 02-4·(-1)·(-8)
Δ = -32
Delta is less than zero, so there is no solution for the equation

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