9^2+r^2=3+r

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Solution for 9^2+r^2=3+r equation: 



9^2+r^2=3+r

We move all terms to the left:

9^2+r^2-(3+r)=0

We add all the numbers together, and all the variables

r^2-(r+3)+9^2=0

We add all the numbers together, and all the variables

r^2-(r+3)+81=0

We get rid of parentheses

r^2-r-3+81=0

We add all the numbers together, and all the variables

r^2-1r+78=0

a = 1; b = -1; c = +78;
Δ = b2-4ac
Δ = -12-4·1·78
Δ = -311
Delta is less than zero, so there is no solution for the equation

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