X=x2+7

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Solution for X=x2+7 equation: 



X=X2+7

We move all terms to the left:

X-(X2+7)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

-X^2+X-7=0

We add all the numbers together, and all the variables

-1X^2+X-7=0

a = -1; b = 1; c = -7;
Δ = b2-4ac
Δ = 12-4·(-1)·(-7)
Δ = -27
Delta is less than zero, so there is no solution for the equation

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