r^2+81=(r+6)

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Solution for r^2+81=(r+6) equation: 



r^2+81=(r+6)

We move all terms to the left:

r^2+81-((r+6))=0



We calculate terms in parentheses: -((r+6)), so:

(r+6)

We get rid of parentheses

r+6

Back to the equation:

-(r+6)



We get rid of parentheses

r^2-r-6+81=0

We add all the numbers together, and all the variables

r^2-1r+75=0

a = 1; b = -1; c = +75;
Δ = b2-4ac
Δ = -12-4·1·75
Δ = -299
Delta is less than zero, so there is no solution for the equation

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